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Condensate formed within the first-effect tube nest of a double-effect,low pressure evaporator, is removed by a （）.
A . series of baffles
B . crossover pipe
C . condensate separator
D . drain pum
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The effect of high vapor superheat in a refrigeration system, is a/an （）.
A . increased capacity of the compressor
B . more efficient operation of the thermal expansion valve
C . decreased capacity of the compressor
D . loss of receiver capacity
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A vessel travelling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as（）.
A . smelling the bottom
B . squatting
C . bank suction
D . bank cushio
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Which of the listed components is considered to separate the high pressure side of a refrigeration cycle from the low pressure side of the cycle?（）
A . The condenser and the expansion valve
B . The king valve and the solenoid valve
C . The compressor and the expansion valve
D . The condenser and the solenoid valve
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A chart projection depicting the poles and a small area on either side of a connecting meridian，that is sometimes used for star charts，is the（）.
A . Azimuthal gnomonic projection
B . Lambert conformal projection
C . Transverse Mercator projection
D . Polyconic projectio
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Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer（）.
A . into the wind
B . away in fire and smoke
C . directly to the standby boat
D . directly to the nearest land
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A tow that veers to the side on the end of the towline is said to（）.
A . yaw
B . surge
C . sway
D . swing
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A vessel traveling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as（）.
A . smelling the bottom
B . squatting
C . bank suction
D . bank cushio
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During the power stroke of a four-stroke/cycle diesel engine, most of the side thrust of a trunk-type piston is absorbed by the（）
A . piston skirt
B . pinion
C . crosshead
D . compression ring
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What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.
A . Jacob's ladder
B . Manropes
C . Heaving lines
D . All of the above
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A tow astern is veering from side to side on its towline. The best way of controlling the action is to（）.
A . trim the tow by the bow
B . trim the tow by the stern
C . list the tow to windward
D . adjust the length of the towing bridle
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Which HTTP method has the characteristic that multiple indential requests may produce side effect beyond those of a single request（）？
A . PUT
B . GET
C . INFO
D . POST
E . HEAD
F . TRACE
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The strake on each side of the keel is called a（）.
A . Sheer strake
B . Gatewood strake
C . Insulation strake
D . Garboard strake
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Embroidery with _______on one side and kitty on the other side is a representative of this style.
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What is the effect of a good name? A good name can .
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What is cause and what is effect？A cause is what ______ something happen; an effect is what happens as result of a ______.
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Which of the following is not an example of a one-sided event? 以下哪个例子没有说明片面事件？
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Through the effects of smog-which is a mixture of smoke fog.
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Mr Smith had been prescribed a drug to treat his depression. One of the effects of the drug is to maintain elevated levels of a particular neurotransmitter that has been derived from which of the following amino acids?
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Many science reports discuss medical studies that test the effect of a new drug. Usually, a large number of people is divided into two groups. Each group takes a different substance. But no one knows which group is getting which substance. One group takes the medicine being tested. Another group takes what we call an inactive substance. Medical researchers call this substance a "placebo." The word "placebo" is Latin for "I shall please." Placebo pills(宽心丸)usually are made of sugar.
Using placebos to test drugs sometimes has a surprising result. Researchers say people taking the placebo often report improvements in their health. This is known as "the placebo effect"--pain that is eased or stopped by an inactive substance. In such testing, the drug must perform. better than the placebo to prove that it is effective.
Doctors have reported that the placebo effect can be used in treatment. For example, a doctor tells a patient that a new drug will stop the pain in his leg. The pill is only sugar. But the patient does not know that. He takes the pill and says his pain is gone.
Scientists are beginning to discover some physical reasons for this reaction in some people. They are learning that much of what people believe to be true comes from what the brain expects is going to happen. If the brain believes a drug will ease pain, the brain may begin physical changes in the body that can cause the expected effect. A recent examination of studies on drugs for depression found that placebos eased the depression about as well as the active drugs.
Other studies have explored the power of placebos. A study in Japan involved thirteen
people who reacted to the poison ivy (常青藤)plant. Poison-ivy causes red itchy sores(伤痕)on some people who touch it. Each person was rubbed on one arm with a harmless leaf, but was told it was poison ivy. Each person was then touched on the other arm with poison ivy, but was told it was a harmless leaf. All thirteen people developed a reaction on the arm where the harmless leaf touched their skin. Only two reacted to the poison ivy leaves.
Doctors and scientists worry that the use of placebos may not always be harmless. They say people can become victims of false doctors and others who use placebos to claim they can cure disease.
What do medical researchers usually use to make placebo pills？
A．Ivy leaves.
B．Harmless leaves.
C．Medicine being tested.
D．sugar.
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The word around which a phrase is formed is termed heaThe words on the left side of
A．A.qualifier
B．B.auxiliary
C．C.determiner
D．D.specifier
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The quality of a batch of drug substances is judged according to
A．product appearance
B．the inspection report
C．product melting point
D．product color
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The description of the algorithm is:1 It is effective for a class of problems;2 Effective for individual problems;3 The calculation can be performed step by step, each step has a unique result;4 is a
A．1
B．2
C．3
D．4
