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问题 填空题

如下图为a、b两物质溶解度曲线，请依图回答下列问题：

（1）M点的完整含义为                         ，

（2）要想从b物质的溶液中获得较多b晶体，最好用                     的方法。

（3）在80℃时，将80g的a物质投入50g水中，充分溶解后得到的溶液             饱和？(填”是”或”不是”)

答案

（1）60℃a、b两物质溶解度相等

（2）蒸发结晶

（3）是

填空题

根据句意及首字母或汉语提示完成单词。

1. Don't tell a lie. Please tell us the t            , so we can make a right decision.

2. —What's in your s            ?  

    —Some books and a pencil-box.

3. Most restaurants are d               to be comfortable.

4. Loud music makes most people t           , but it makes Tina relaxed.

5. Restaurant o         have to know how to make food. They also have to know how to make money.

6. —What color do you prefer, pink or p           ?

    —I prefer pink.

7. Different people have very different             (思想).

8. The quality of a             (产品) is the most important.

9. We must protect              (濒危的) animals because they are our friends.

10. The girl received a              (神秘的) phone call last night.
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单项选择题

端局与所从属的关口局间在业务量足够大时，可设置（）。

A.低呼损直达路由

B.基干路由

C.卫星电路

D.迂回路由
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