某同学在配制500mL0.5mol/LNaOH溶液的实验过程中，除用到玻璃棒、烧

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问题选择题

某同学在配制500mL 0.5mol/L NaOH溶液的实验过程中，除用到玻璃棒、烧杯、500mL容量瓶、量筒、胶头滴管、试剂瓶之外，还需要的主要仪器有（　　）

A．天平

B．温度计

C．蒸发皿

D．酒精灯

答案

答案：A

句型转换

同义句转换，每空一词。

1. To eat a balanced diet is very important.

________ very important ________ eat a balanced diet.

2. They are watching TV at home now.

They are watching TV at home ________.

3. What's wrong with your sister?

What's ________ with your sister?

4. She has a sore throat.

There is something ________ her throat.

5. There is a lot of milk in the bottle.

There is ________ milk in the bottle.

选择题

下列各组中，都是绝缘体的是（　　）

A．陶瓷、玻璃、油

B．塑料、人体、醋

C．干木头、大地、铁

D．铅笔芯、玻璃、橡胶、金属