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【简答题】
Anyone ______ (want) to understand the industry of the future will have to know about robotics (机器人学).
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举一反三
【单选题】柴油机直接驱动螺旋桨工作时,随转速的提高,指示效率η i 和机械效率η m 的变化规律是______。
A.
η i 升高, η m 升高
B.
η i 升高, η m 降低
C.
η i 降低, η m 升高
D.
η i 降低, η m 降低
【单选题】She was lifting handfuls of fine sand and letting it pour __________ her fingers.A．acrossB．inC．th
A.
15.She was lifting handfuls of fine sand and letting it pour __________ her fingers. A．across
B.
in
C.
through
D.
into
【简答题】She let the chance _____________ through her fingers.
【单选题】"She has green fingers" means ( ).
A.
She has been ill.
B.
There is something with her fingers
C.
She is good at gardening.
【单选题】She thanked him and hung up the phone, her tears now flowing hard. Her fingers shaking, as she slowly reached to get the card. Inside the card, she saw that he had written her a note.
A.
她谢了他，挂了电话，眼泪在艰难流出。她的手指在颤抖，当她慢慢地伸手去拿卡片时。在卡片里，他看到了他写给她的短信。
B.
她谢了他，挂了电话，眼泪夺眶而出。当她慢慢地伸手去拿卡片时，她的手在颤抖。在卡片里，他看到了他写给她的短信。
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