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问题 单项选择题

关于对电动锚机控制线路的要求，下列说法正确的是（）。

A．当主令控制器手柄从零位快速扳到高速挡，电机也立即高速起动

B．控制线路应适应电机堵转1min的要求

C．控制线路中不设过载保护

D．控制线路不需设置零压保护环节

答案

参考答案：B

单项选择题 A3/A4型题

一患者因左侧鼻咽癌而行局部放射治疗，放疗1年后患者出现张口受限，张口度只有一横指，该患者以张口受限而就诊。 该患者的治疗可考虑为（）

A.加强张口训练，必要时手术松解挛缩的肌肉

B.左侧髁突高位切除

C.左侧颞下颌关节成形术

D.左侧翼外肌封闭治疗

E.配戴调位型垫
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补全对话，情景问答
补全对话。
M: What's wrong with you, Linda? You look unhappy.
W: (1)__________________________________________.
M: Really? What happened to you?
W: Well. I walked to school…
M: Why? Didn't you go to school by bike?
W: At first, I rode my bike. (2)______________________. I couldn't repair it.
M: So you were late for school!
W: I'm not allowed to go to class late, and there was a big test today.
M: (3)___________________________________?
W: That's right. (4)_____________________________________________
M: Well, Linda, the school has to have rules you know.
W: I know. But I should be allowed to take the test later. It's not fair.
M: I agree. (5)______________________________________________
W: Yes. Maybe she'll understand, if I explain what has happened.
A. Maybe you could talk to the teacher after school.
B. And you weren't allowed to take the test?
C. But I know I could pass the test.
D. I think I'm going to fail the English test, Dad.
E. But on my way to school my bike broke down.
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