题目内容
（请给出正确答案）
What does "bounce back" mean in the first paragraph？
A．leap suddenly
B．recover from a terrible situation
C．refuse to accept
D．come back after being refused
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更多“What does "bounce back" mean in the first paragraph？A．leap suddenlyB．recover from a terrib”相关的问题
A、It has been used up in producing the downward motion.
B、It has been transformed back into potential energy.
C、It has been transferred into the ball by heat.
D、It is in the ball and floor (and walls) as energy of invisible molecular motion.
听力原文：W: I think we should do more to expand our business still further.
M: No, to go back to what, I was saying earlier, we really need to think again before making the decision.
Q: What does the man think of the woman's suggestion？
(15)
A．The woman is entirely wrong.
B．He is doubtful about it.
C．The decision should be made as soon as possible.
D．He approves of it.
What will happen if whale numbers drop to a certain degree？
A.The number will bounce back at a certain point.
B.Whales begin to adapt to new living conditions.
C.The extinction of whales becomes unavoidable.
D.A biological disaster will come to the earth.
Off-road vehicles experience many disturbance inputs as they traverse over rough roads. An active suspension system can be controlled by a sensor that looks "ahead" at the road conditions. An example of a simple suspension system that can accommodate the bumps is shown in Figure E2.12. Find the appropriate gain
What is NOT true of the invisibility device？
A. It is made of a special material with unusual ability．
B. Microwaves bounce off it when they strike it．
C. Microwaves pass through it when they strike it．
D. It bends the microwaves all the way around until they reach the opposite side．
What is NOT true of the invisibility device？ 查看材料
A.It is made of a special material with unusual ability.
B.Microwaves bounce off it when they strike it.
C.Microwaves pass through it when they strike it.
D.It bends the microwaves all the way around until they reach the opposite side.
A．Using magnetic fields as a guide
B．Recognizing coastal landmarks
C．Following the heat of the tropical water
D．Listening to sounds that bounce off of the land
E．Following the migrating plankton
A．they are bound to failure
B．they usually draw back from failure
C．they will try to improve when faced with failure
D．they are inclined to wonder what to do
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