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A parallax correction is NOT applied to observations of the().
A . stars
B . Moon
C . Sun
D . Planet
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Which of the precautions listed should be observed when taking on diesel fuel?()
A . Secure all lighting to the main deck
B . Provide a portable fan to blow away fumes
C . Prohibit smoking in the area
D . Display a black triangle during daylight hour
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Which of the listed types steam traps operates on the principle that hot water flashes to steam when its vapor pressure is rapidly reduced?()
A . Ball float
B . Thermostatic
C . Bimetallic
D . Impulse
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The type of fog that occurs on clear nights with very light breezes and forms when the earth cools rapidly by radiation is known as().
A . Radiation fog
B . Frontal fog
C . Convection fog
D . Advection fog
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A body can only be observed at lower transit when().
A . the declination is the opposite name to the latitude
B . the algebraic sum of the colatitude and declination exceeds 90
C . the observer is in high latitudes above either polar circle
D . the body is circumpolar
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When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?()
A . The diesel oil must never be allowed to mix with the heavy fuel
B . The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valve
C . The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valve
D . The heating steam must be secured before the diesel oil passes through the three-way valve
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What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals?()
A . RSTP information is automatically aged out.
B . The port sends a TCN to the root bridge.
C . The port moves to listening state.
D . The port becomes a normal spanning tree port.
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You need to troubleshoot an issue on the switched LAN. When you issue a command "show port3/1" on a switch, you observe the Giants column has a non-zero entry. What could cause this?()
A . IEEE 802.10
B . Misconfigured NIC
C . User configuration
D . IEEE 802.1Q
E . None of the other alternatives apply
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A phase correction is applied to observations of().
A . the Sun
B . stars
C . planets
D . All of the above
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When you are transferring fuel oil to the setting tanks, precautions to be observed should include ()
A . plugging gooseneck tank vents to prevent accident overflow
B . maintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow line
C . sounding the tanks frequently and reducing the transfer rate as the level approaches maximum fill
D . maintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the shi
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A rapid rise or fall of the barometer indicates().
A . heavy rain within six hours
B . a decrease in wind velocity
C . a change in the present weather conditions
D . that fog will soon set i
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A latitude line will be obtained by observing a body ().
A . on the prime vertical
B . on the celestial horizon
C . at lower transit
D . on the Greenwich meridia
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A semidiameter correction is applied to observations of().
A . Mars
B . the Moon
C . Jupiter
D . All of the above
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The()provides a rapid means of tallying when items of the same commodity are being loaded or unloaded in uniform drafts consisting of an equal number of pieces.
A . unit method
B . block method
C . straight method
D . package method
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The talk took place in the()of a diplomatic observer.
A . presence
B . light
C . honor
D . present
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()is not an advice be observed when samples are taken in tanks containing volatile petroleum products.
A . Filter masks with a combination filter should be brought and used whenever necessary
B . Only explosion-proof equipment(marked EEx)should be used
C . Avoid breathing petroleum gases,especially if they come from sour crude(smell of rotten eggs)
D . so far as possible,take early and substantial action to keep well clear
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According to Buys Ballot’s law,when an observer in the Northern Hemisphere experiences a northwest wind,the center of low pressure is located to the().
A . northeast
B . west-southwest
C . northwest
D . south-southeast
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A quick and rapid motion of a ship in a seaway is an indication of a(n) ().
A . large GM
B . high center of gravity
C . excessive free surface
D . small GZ
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Each air carrier flight cdck aorwmember on flight deck duty must be provided with an oxygen mask that can be rapidly placed on his face when operating at flight altitudes
A.of FL 260.
B.of FL 250.
C.Above FL 250.
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So, in the evening when the body temperature is beginning to fall, there is a natural ten______ to fall asleep and in the morning, when the temperature begins to rise rapidly, we are most likely to wake up.
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Passage Four:Questions 26 to 30 are based on the following passage.We can see how the product life cycle works by looking at the introduction of instant coffee. When it was introduced, most people did not like it as well as “regular” coffee, and it took several years to gain general acceptance (introduction stage). At one point, though, instant coffee grew rapidly in popularity, and many brands were introduced (stage of rapid growth). After a while, people became attached to one brand and sales leveled off (stage of maturity). Sales went into a slight decline (衰退) when freeze-dried coffees were introduced (stage of decline).
The importance of the product life cycle to marketers is this: Different stages in the product life cycle call for different strategies. The goal is to extend product life so that sales and profits do not decline. One strategy is called market modification. It means that marketing managers look for new users and market sections. Did you know, for example, that the backpacks that so many students carry today were originally designed for the military?
Market modification also means searching for increased usage among present customers or going for a different market, such as senior citizens. A marketer may re-position the product to appeal to new market sections.
Another product extension strategy is called product modification. It involves changing product quality, features, or style. to attract new users or more usage from present users. American auto manufacturers are using quality improvement as one way to recapture world markets. Note, also, how auto manufacturers once changed styles dramatically from year to year to keep demand from falling.
第26题:According to the passage, when people grow fond of one particular brand of a product, its sales will ________.
A) decrease gradually
B) remain at the same level
C) become unstable
D) improve enormously
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For a venture, what is the merit of setting a rapid growth rate()
A.In some industries, survival and profitability depend on rapidly attaining a substaintial market position, such as internet-based industries
B.The venture will be more successful
C.The venture will have less uncertainty in its development
D.The venture will operate more efficiently
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Medieval cities grew rapidly when they had(harbors)nearby(选择与括号部分意义最相近的词或短语)
A.merchants
B.castles
C.suburbs
D.ports
E.severe
F.bizarreG、moistH、improbable
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The first step in the study of any language is observing and ____ precisely what happens when native speakers speak it.
A.setting off
B.setting about
C.setting up
D.setting down