原子弹的原理是美国人发明的。（）_爱下问搜题

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问题判断题

原子弹的原理是美国人发明的。（）

答案

参考答案：错

问答题简答题

组织发展的特征是什么？

填空题

用方框内所给的适当的词组的适当形式填空。

set up put up clean up call up cheer up

1. We are going to _______ a food bank to help hungry people.
2. －I hate doing homework. － Well, ________! It's part of your job.
3. The city park is not clean. We need to help ____ it ____.
4. If the UFO came, I would _____the police.
5. We could _________some movie posters on the wall of our cinema.