(2分)Not always ____________they want to.

(2分)Not always ____________they want to. A. people can do what B. can people do

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(2分)The sun heats the earth, __________is very imp

(2分)The sun heats the earth, __________is very important to living things. A. th

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折现率本质上是()回答正确A期望投资回报率B无风险报酬率C超额收益率D风险报酬率

折现率本质上是()回答正确A期望投资回报率B无风险报酬率C超额收益率D风险报酬率

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一般来说高层建筑水平荷载的主要因素是A:人流B:太阳辐射C:风力D:自重

一般来说高层建筑水平荷载的主要因素是A:人流B:太阳辐射C:风力D:自重

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23.(2分)You __________to lock the door at night.

23.(2分)You __________to lock the door at night. A. should B. ought C. must D. sh

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