设备正常情况下，M601开关的接地刀闸只有满足以下哪些条件才能合上（）。 A.操作电

用所给单词的正确形式填空。

1. Jenny ___________ (run) with a kite on the playground now.        

2. I brush my ___________(tooth) in the morning and in the evening.  

3. The weather is cold and ___________ (cloud).                      

4. His aunt ___________ (make) dumplings now.                        

5. His brother___________ (drive) to work every day.                 

6. It's 9:00 now. The children are ___________ (have) an English class.

7. He lives near school. He ___________ (walk) to school.             

8. February  is the ___________(two) month in a year.                

9. How many ___________ (season) are there in a year?                

10. He often ___________ (watch) TV on Fridays.                        

欲除去氯气中少量的氯化氢气体，可选用的试剂是（　　）

A．饱和食盐水

B．硝酸银溶液

C．氢氧化钠溶液

D．饱和碳酸钠溶液

下列坩埚中，既可用作熔化固体KOH，又可用作熔化固体KHSO₄的容器是(    )

A．铁坩埚

B．石英坩埚

C．瓷坩埚

D．石墨坩埚

私人银行客户非常注意财富的隐私性，让客户感受到私密性，是对私人银行服务的关键要求之一。（）

人民币银行结算账户既可以作为存款人的活期存款账户，也可以作为存款人的定期存款账户。