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听力原文:M: Did you take these pictures? They are very good. W: Yes, I think they turned out very well too. I like to bring my camera with me wherever I go. That's way if I see something attractive I can take a picture of it. M: Carrying a big camera around is too much trouble for me. W: My camera is really small enough. Here let me show you. M: That is a compact camera. But you must know a lot about photography to get such professional looking results. W: Not necessarily. This camera is simple to work. It has an automatic focus. I don't even have to worry about focusing. M: That's what I need. When I take pictures, they usually come out blurry because I don't adjust the lenses properly. And I hate photos that are out of focus. Is a camera like yours very expensive? W: Less than you'd expect. Why don't you check the prices that Head Fields demonstrates? This model was on sale there last week. M: I think I will. It certainly won't hurt to take a look. What are the speakers doing as the conversation begins?
A.
Looking at some photographs.
B.
Selling cameras.
C.
Teaching a photography class.
D.
Repairing camera equipment.
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【判断题】Z535钻床控制回路试车时,将QSI接通,用万用表测量FU1进线处应有三相380V交流电压。
A.
正确
B.
错误
【简答题】逻辑推理是人们在长时间的社会实践中,对客观事物的内在联系和相互关系所作出的抽象概括的反映。新闻评论中常用的逻辑推理形式有:直接推理, (________) , (________) 和 (________) 。
【简答题】罩面板与木龙骨的连接方式有两种 和 。若采用 的方式,则连接更为牢固。
【单选题】【上一道题的答案是A】刘玲欲删除Word文档中的所有空格,下列_______功能可帮助刘玲快速完成。
A.
清除
B.
查找
C.
DEL
D.
替换
【单选题】( )随唇肌活动范围最大。
A.
上唇系带
B.
下唇系带
C.
颊系带
D.
不一定
E.
以上均有可能
【判断题】Z535钻床控制回路试车时,将QS1接通,用万用表测量FU1进线处应有三相127V交流电压。( )
A.
正确
B.
错误
【单选题】Z535钻床控制回路试车时,将QS1接通,用万用表测量变压器二次侧有()交流电压。
A.
127V
B.
24V
C.
36V
D.
12V
【多选题】突发事件的性质包括
A.
突然性
B.
社会危害的严重性
C.
难以预料性
D.
可控性
E.
成因、发展及影响的复杂性
【单选题】等直传动轴如图所示,轮B、D为主动轮,轮A、C、E为从动轮。若主动轮B、D上的输入功率相等,从动轮A、C、E上的输出功率也相等,如只考虑扭转变形而不考虑弯曲变形,危险截面的位置在( )。
A.
仅AB区间
B.
BC区间
C.
CD区间
D.
AB区间和DE区间
【单选题】Z535钻床控制回路试车时,将QS1接通,用万用表测量FU1进线处应有三相()V交流电压。
A.
500
B.
380
C.
127
D.
36
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