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【简答题】
在 (x- 1 x ) 6 的二项式展开式中,常数项等于______.
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【单选题】消毒酒精中酒精的体积分数为70%~75%,则消毒酒精中的溶剂是(  )
A.
B.
酒精
C.
D.
说不定
【单选题】Crying is a nearly universal sign of grief, though some mourners report that, despite genuine sorrow, they cannot shed tears,sometimes even for years after their loved one has gone. Unlike today, when...
A.
- Sometimes people cannot cry despite genuine grief.
B.
- Men are less likely to give reasons for their tears.
C.
【单选题】75%的消毒酒精是指
A.
100ml水中含有75ml酒精
B.
100g水中含有75ml酒精
C.
25ml水中加入75ml酒精
D.
100g水中含75g酒精
【单选题】频率(MHz)为4.47×108 的辐射,其波长数值为( )。
A.
670.7nm
B.
420.7nm
C.
545.3nm
D.
670.7μm
【单选题】关于视神经盘的描述正确的是:
A.
位于眼球后极
B.
有视网膜中央动脉穿过
C.
对光线极为敏感
D.
此处有黄斑中央凹
【单选题】When Mrs. Ritchfield walked him to school the day after the funeral, the author felt______.
A.
embarrassed by no elitist English car
B.
inferior to Danny and his friends
C.
relieved for being equals with Danny and his friends
D.
extremely sensitive about the loss of an expensive car
【单选题】75%的消毒酒精是指
A.
100ml水中含有75ml酒精
B.
100g水中含有75ml酒精
C.
25ml水中加入75ml酒精
D.
100g水中含75g酒精
【判断题】Zhao Zilong Lion is a symbol of inauspiciousness and usually burned right after the funeral.
A.
正确
B.
错误
【单选题】Which of the following best describes Father’s craving for beer after the funeral?
A.
He swallowed half a glass      immediately and wanted more.
B.
He sipped bit by bit in order to      make the pleasure last.
C.
He smoked first and turned his      back on the glass for a while before he drank it.
D.
He ordered two glasses at once and      knew that was still not enough.
【单选题】频率(MHz)为4.47×108 的辐射,其波长数值为( )。
A.
670.7nm
B.
420.7nm
C.
545.3nm
D.
770.7nm
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