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问题 填空题

牵动机械(如电车、机械车、电瓶车等)及大型轧钢机中，一般都采用直流电动机而不是异步电动机的原因是( )。

A．异步电动机的功率因数较低

B．异步电动机的调速性能很差

C．异步电动机的起动转矩较小

D．异步电动机的起动电流太大

答案

参考答案：B

阅读理解

阅读短文内容判断正(T)误(F) 。

   I'm Fangfang. I live in a big village. It's small but beautiful. Look! That is my house. There are some trees near it. Behind the house there's a big river. Many ducks are beside the boats. How lovely(可爱) ! Oh,

many flowers are between the trees.

(     ) 1. Fangfang lives in a big city.

(     ) 2. There is a small river behind the house.

(     ) 3. Near Fangfang's house there are some trees.

(     ) 4. Some flowers are between the trees .

( ) 5. The ducks in the river are not lovely.
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单项选择题

药品批发业务应按规定建立销售记录，销售记录内容包括

A．药品生产企业、商品名、生产批号、规格

B．发货日期、发货人和复核人

C．品名、规格、厂名、生产批号

D．购货单位、品名、厂名、发货日期、发货人和复核人

E．品名、剂型、规格、有效期、生产厂商、购货单位、销售数量、销售日期
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