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【单选题】
CTR是 热敏电阻。
A.
正温度系数
B.
负温度系数
C.
临界温度系数
D.
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参考答案:
举一反三
【单选题】对所有无人照管行李进行 100 %的 X 射线的检查属于保安等级 ____ 时采取的保安措施。
A.
1
B.
2
C.
3
【单选题】对所有无人照管的行李进行100%的X射线的检查属于保安等级___时采取的保安措施
A.
1
B.
2
C.
3
【多选题】发动机按燃料着火方式不同可以分为( )。
A.
压燃式
B.
自然吸气式
C.
A点燃式
D.
增压式
【简答题】已有如下定义和输入语句char cl,c2;int x;scanf("%c%d%c",&c1,&x,&c2);若要求x,cl,c2的值分别分9,"K"和"H",正确的数据输入是A. k9H B. k 9 H C. k9 H D. 9kH
【简答题】完型填空(10分) One day. A farmer was walking along a road with his son Thomas. The father said, “Look! There’s a horseshoe 31 the ground. Pick it up and put it in your bag.” Thomas said, “It wastes my time...
【简答题】阅读理解,选择正确的答案。 Last weekend, Susan and her mother went to a shopping mall. Susan saw a beautiful skirt in that mall, and she wanted to buy it. But the price of that skirt was one hundred and fifty yuan...
【简答题】线形缩聚机理的特征有哪两个? 逐步聚合的实施方法一般哪 三种方法?
【简答题】完型填空 Look! This is a photo of my 1 . These are my 2 . My father is a teacher and my mother is a worker. I have an elder sister. 3 name is Mary. She is four. I am 4 . We are in the same school. My ...
【简答题】完型填空。 Flies (苍蝇) usually live in the dirty places. Let's look at a fly, and see where it 1 . First, it flies out of the window, 2 it stands on 3 dirty things in the street, and then it flies back to t...
【单选题】遇险通信方式和遇险通信频率应如何确定?_____
A.
根据遇险呼叫电文的后续通信方式确定随后通信方式;
B.
选择与DSC呼叫频率同波段的遇险通信专用频率;
C.
A+C
D.
可随意选择。
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