An engineer, together with some motormen （）to help in the repair work.

A . On the Dialer0 interface， add the pppoe enable command B . On the Dialer0 Interface， add the ip mtu 1496 command C . On the ATM0/0 interface， add the dialer pool-member 1 command D . On the ATM0/0 interface， add the dialer pool-member 0 command

A . Use the CO system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the CO system D . Evacuate the engine room and use the fire main system

A . the engineer officer in charge of watch B . the deck officer in charge of watch C . the master D . the chief mate

A . downwards；upwards B . upwards；downwards C . downwards；downwards D . upwards；upward

A . increase B . decrease C . fluctuate D . remain constant

A . Use the C0 system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the C0 system D . Evacuate the engine room and use the fire main system

A . maintain higher than normal jacket water temperature B . change the lube oil more frequently than normal C . maintain a higher air-box temperature than normal D . maintain a higher air-box pressure than normal

A . graphite packing B . sealing compound C . lubricating oil D . gasket

A . speed will drop drastically with any increase in load B . will stop due to zero fuel supply C . will stall upon application of load D . speed will remain fairly constant despite load change

A . Bypass the after-cooler to operate at speed B . Run at reduced speed until the cooler can be repaired or renewed C . Switch to diesel fuel and run at full speed D . Nothing need to be done due to the low heating value of heavy fuel

A . ship draft B . pitch C . engine load D . oil viscosity

A . pilot valve oil pressure B . speeder spring force C . compensation needle valve clearance D . centrifugal force on the flyweight

A . leave the access door partially open B . enter from the lowest level C . enter from the highest level D . attempt to operate machinery

A . scavenging B . forced draft C . turbo-charging D . aspiratio

A . temperature B . pressure C . engine speed D . all of the above

A . Lube oil pressure and temperature B . jacket water pressure and temperature C . Engine over-speed D . Lube oil sump level

A . telescopic pipes B . large bore C . drilled passage D . tied rod

A . completely closing the compartment B . closing the compartment except for the ventilators C . leaving the compartment open to the air D . increasing the air flow to the compartment by blower

I chose to study engineering at a small liberal-arts university that doesn't even offer a major in electrical engineering. Obviously, this was not a practical choice; I came here for more noble reasons. I wanted a broad education that would provide me with flexibility and a value system to guide me in my career. I wanted to open my eyes and expand my vision by interacting with people who weren't studying science or engineering. My parents, teachers and other adults praised me for such a sensible choice. They told me I was wise and mature beyond my 18 years, and I believed them. I headed off to college, feeling sure I was going to have an advantage over those students who went to big engineering "factories" where they didn't care if you had values or were flexible. I was going to be a complete engineer: technical genius and sensitive humanist all in one. Now I'm not so sure. Somewhere along the way my noble ideals crashed into reality, as all noble ideals eventually do. After three years of struggling to balance math, physics and engineering courses with liberal arts courses, I have learned there are reasons why few engineering students try to reconcile engineering with liberal-arts courses in college. The reality that has blocked my path to become the typical successful student is that engineering and the liberal arts simply don't mix as easily as I assumed in high school. Individually they shape a person in very different ways; together they threaten to confuse. The struggle to reconcile the two fields of study is difficult. The author chose to study engineering at a small liberal-arts university because he ______. A．intended to be a sensible student with noble ideals B．wanted to be an example of practicality and rationality C．intended to be a combination of engineer and humanist D．wanted to coordinate engineering with liberal-arts courses in college 此题为多项选择题。

Impressive and complex 13 it may appear, the rocket, which was invented in China over 800 years 14 , is a relatively simple device.Fuel that is burned in the rocket engine changes 15 gas.The hot and rapidly expanding gas must escape, but it can do so only 16 an opening that faces backward.As the gas is 17 with great force, it pushes the rocket in the 18 direction.Like the kick of a gun when it is fired, it 19 the laws of nature described by Sir Isaac Newton when he discovered that“ 20 every action, there is an equal and opposite reaction.” 11.A.shown B.been C.appeared D.proved 12.A.send B.land C.take D.carry 13.A.that B.so C.as D.sometimes 14.A.in advance B.before C.earlier D.ago 15.A.as B.into C.for D.the 16.A.in B.at C.by D.through 17.A.transmitted B.dispersed C.erected D.radiated 18.A.same B.other C.opposite D.wrong 19.A.states B.proves C.follows D.breaks 20.A.like B.as C.with D.for