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【判断题】
直流 PWM 可逆系统进入制动状态时,电能可以通过二极管整流器送回交流电网,不会造成电容两端电压升高。
A.
正确
B.
错误
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举一反三
【单选题】If I ___ you, I ___ be afraid .
A.
was, wouldn’t
B.
were, won’t 
C.
were, wouldn’t
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【单选题】Northwind.accdb 数据库采用的数据模型是( )。
A.
面向对象模型
B.
层次模型
C.
关系模型
D.
网状模型
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【单选题】一新生儿出生后需要初步复苏，应遵循的顺序是
A.
擦干全身   保暖   清理呼吸道   刺激   摆好体位
B.
摆好体位   擦干全身   保暖   清理呼吸道   刺激
C.
清理呼吸道  摆好体位   保暖    擦干全身   刺激
D.
保暖   摆好体位   清理呼吸道    擦干全身   刺激
查看完整题目与答案
【单选题】I'm not tired. If I were tired, I ______ a rest. [     ]
A.
will
B.
would have
C.
would
D.
were going to
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【单选题】保证菜肴的脆嫩和入味是( )的其中一个作用。
A.
原料上浆挂糊
B.
菜肴勾芡
C.
菜肴调味
D.
干货涨发
查看完整题目与答案
【单选题】(I were ) you, I’ll go there. A、 B、 C、 D、
A.
If were I
B.
Were I
C.
I were
D.
I am
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【单选题】______ to do the work, I should do it in a different way. A. If I was B. I were C. Was I D. Were I
A.
If I was
B.
I were
C.
Was I
D.
Were I
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【单选题】If I _____ free, I _____ go swimming. [     ]
A.
was; will
B.
was; would
C.
were; would
D.
were; will
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【简答题】简明叙述尿素形成的机理和意义。
查看完整题目与答案
【单选题】— Where ____________ you last Sunday? — I ____________ in New York. [     ]
A.
was, was
B.
were, were
C.
were, was
查看完整题目与答案
相关题目：
【单选题】If I ___ you, I ___ be afraid .
A.
was, wouldn’t
B.
were, won’t 
C.
were, wouldn’t
查看完整题目与答案
【单选题】Northwind.accdb 数据库采用的数据模型是( )。
A.
面向对象模型
B.
层次模型
C.
关系模型
D.
网状模型
查看完整题目与答案
【单选题】一新生儿出生后需要初步复苏，应遵循的顺序是
A.
擦干全身   保暖   清理呼吸道   刺激   摆好体位
B.
摆好体位   擦干全身   保暖   清理呼吸道   刺激
C.
清理呼吸道  摆好体位   保暖    擦干全身   刺激
D.
保暖   摆好体位   清理呼吸道    擦干全身   刺激
查看完整题目与答案
【单选题】I'm not tired. If I were tired, I ______ a rest. [     ]
A.
will
B.
would have
C.
would
D.
were going to
查看完整题目与答案
【单选题】保证菜肴的脆嫩和入味是( )的其中一个作用。
A.
原料上浆挂糊
B.
菜肴勾芡
C.
菜肴调味
D.
干货涨发
查看完整题目与答案
【单选题】(I were ) you, I’ll go there. A、 B、 C、 D、
A.
If were I
B.
Were I
C.
I were
D.
I am
查看完整题目与答案
【单选题】______ to do the work, I should do it in a different way. A. If I was B. I were C. Was I D. Were I
A.
If I was
B.
I were
C.
Was I
D.
Were I
查看完整题目与答案
【单选题】If I _____ free, I _____ go swimming. [     ]
A.
was; will
B.
was; would
C.
were; would
D.
were; will
查看完整题目与答案
【简答题】简明叙述尿素形成的机理和意义。
查看完整题目与答案
【单选题】— Where ____________ you last Sunday? — I ____________ in New York. [     ]
A.
was, was
B.
were, were
C.
were, was
查看完整题目与答案