1)No one hopes that he will ___his usefulness

lgfhr2022-10-04 11:39:542条回答

1)No one hopes that he will ___his usefulness
A)retain B)keep C)prolong D)survive
2)Waves of red light are about ___waves of blue light
A)twice longer than B)twice as long as C)twice large than D)twice as large as
如第二个,我觉得A和B都是一样的.
像第一个怎么翻译啊?第二个A为什么不对啊?

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wjjwjx 共回答了15个问题 | 采纳率93.3%
C
B
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c b
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