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【判断题】
36 IT 表示标准公差,标准公差从 IT01 至 IT18 共分 18 级。( )
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】She has found _____ at last.
A.
content
B.
contentment
C.
contended
D.
Discontentment
【单选题】Why does Jessie want to change her hair style?
A.
She has found a job.
B.
She has become a teacher.
C.
Her boss is dissatisfied with her hairstyle.
D.
All of the above.
【判断题】冷却系统的水孔到型腔表面的最小距离应小于10mm。
A.
正确
B.
错误
【单选题】Rebecca found life on Everest is hard because ______.
A.
she has nothing but a toothbrush
B.
she is a clean person
C.
everything that is needed has to be carded on the back
【判断题】DSB-SC与常规AM信号频谱的最主要区别在于:DSB-SC信号频谱在载波频率处没有离散冲激分量
A.
正确
B.
错误
【判断题】DSB-SC与常规AM信号频谱的最主要区别在于:DSB-SC信号频谱在载波频率处没有离散冲激分量。
A.
正确
B.
错误
【单选题】Rebecca found life on Everest is hard because ______.
A.
she has nothing but a toothbrush
B.
she is a clean person
C.
everything that is needed has to be carried on the back
【单选题】三相功率实际上是( )个瓦特表组成的。
A.
1
B.
2
C.
3
D.
2或3
【简答题】A.She has already found her topic. B.She won't sleep tonight so as to figure out her topic. C.She is going to have a sound sleep tonight. D.She will think about her essay tomorrow.
【判断题】冷却系统的水孔到型腔表面的最小距离应小于10mm。
A.
正确
B.
错误
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