起重量限制器的电气型产品一般由载荷传感器和( )两部分组成。

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问题单项选择题

起重量限制器的电气型产品一般由载荷传感器和( )两部分组成。其中载荷传感器使用( )或( )传感器，根据安装位置配置专用安装附件。

A．二次仪表；电阻应变式；压磁式

B．一次仪表；电涡流式；自感式

C．二次仪表；电涡流式；压磁式

D．一次仪表；电阻应变式；自感式

答案

参考答案：A

补全对话，情景问答

补全对话。

A: 1 that?

B: That's Sam.

A: 2 you know him?

B: Yes, he's my good friend.

A: Why 3 you like him? 4 looks so strange (奇怪的).

B: 5 he's funny. He can talk like our teacher.

A: 6 is he 7 ?

B: He's outgoing and friendly 8 others.

A: But I don't like a boy 9 such long hair.

B: It's not important. I think he's 10 best student in our class.

1._____2._____3._____4._____5._____

6._____7._____8._____9._____10._____

单项选择题

白芍不具有的功效是

A．养血
B．平肝
C．止痛
D．敛阴
E．潜阳