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问题 单项选择题

文化变迁的根本源泉是( )

A．发现和发明

B．革命与社会制度变革

C．文化借用或传播

D．文化移入

答案

参考答案：A

解析： 发现和发明可以存一个社会的内部或外部产生，但它们不一定会导致文化变迁。

问答题

下列各项实验中，将应选用的仪器的编号填在横线上．供选用的仪器有：

①石棉网  ②量筒  ③胶头滴管  ④药匙  ⑤镊子  ⑥托盘天平  ⑦带铁圈的铁架台  ⑧带铁夹的铁架台  ⑨酒精灯

取用一定量的稀盐酸需用______，取用碳酸钠粉末需用______．

吸取并滴加液体需用______，给烧杯里的水加热需用______．
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填空题

用所给单词的适当形式填空。

1. This book is _____ (cheap) than that one.

2. He is _____ (friend) to me.

3. How many _____(sheep) are there on the hill?

4. Tom writes _____ (careful).

5. Please keep the door _____ (open).

6. This is _____ (she) book.

7. That is the _____ (good) music in the world.

8. Your coat is as _____ (new) as hers.

9. He is the best _____ (perform).

10. There are some _____ (child) in the park.

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