【单选题】【消耗次数：1】
A camera takes light rays bounced off objects and____ them
on a sheet of a film.
①
concentrates
②
mixes
③
combines
④
focuses
参考答案：
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相关题目
【单选题】
The earth ____ heat and light from the sun.
①
takes on
②
takes in
③
absorbs in
④
picks out
【多选题】
___________ the film?
①
How are you like
②
How do you like
③
What do you think of
④
What do you do
【单选题】
5. Physics deals withthe forces acting on ______ objects.
①
actual
②
real
③
concrete
④
physical
【单选题】
下面哪个检索式的作用与短语检索“digiatal camera”等价（）
①
digiatal (W) camera
②
digiatal (N) camera
③
digiatal AND camera
④
digiatal OR camera
【单选题】
Can I borrow your camera for a couple of days?
①
Yes, you may borrow
②
Yes, go on
③
Sure, here you are. Enjoy your journey
④
It doesn’t matter
【单选题】
Every society has its own peculiar customs and____ of acting.
①
attitudes
②
behavior
③
ways
④
means
【单选题】
A sheet of metal was shaken to _____ the sound of thunder.
①
stimulate
②
simulate
③
reproduce
④
duplicate
随机题目
【单选题】
<img src=http://60.205.157.60/course/a@19076EE6D48042F9F2DE4C1EB44D2346.png title=单选题图1.png alt=单选题图1.png/>如图1所示结构为（ ）。
①
几何瞬变体系
②
几何可变体系
③
几何不变体系，无多余约束
④
几何不变体系，有一个多余约束
【单选题】
<img src=http://60.205.157.60/course/a@F4E215CB1BBE2458258C660A7DCE47CB.png title=单选题图8.png alt=单选题图8.png/>图8示梁1-1截面的剪力为（ ）kN。
①
－2
②
8
③
2
④
－8