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【单选题】
若单相桥式整流电容滤波电路中,变压器副边电压为有效值为 10V ,则正常工作时输出电压平均值 U O (AV) 可能的数值为( )。
A.
4.5V
B.
9V
C.
12V
D.
14V
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参考答案:
举一反三
【单选题】— Look! Yao Ming is playing against him. — I _____ Yao Ming to beat him. [ ]
A.
hope
B.
prefer
C.
expect
D.
think
查看完整题目与答案
【单选题】The speaker did not believe ______ when he first saw Yao Ming.
A.
His own eyes
B.
Yao Ming’s size
C.
That Yao Ming should be so thin
D.
That Yao Ming was Chinese-born
查看完整题目与答案
【单选题】十二经脉中阳经与阳经的交接部位是
A.
头面部
B.
上肢部
C.
下肢部
D.
四肢末端
E.
胸部
查看完整题目与答案
【多选题】中药 化学的研究内容主要包括中药化学成分的
A.
结构类型
B.
性质与剂型的关系
C.
提取分离方法
D.
活性筛选
E.
结构鉴定
查看完整题目与答案
【单选题】十二经脉中阳经与阳经的交接部位是
A.
头面部
B.
上肢部
C.
下肢部
D.
胸部
E.
四肢未端
查看完整题目与答案
【简答题】Yao Ming is from Shanghai. Liu Xiang is from Shanghai, too.(合并为一句) Yao Ming_____ Liu Xiang_______ from Shanghai.
查看完整题目与答案
【简答题】The people of Houston hope, Yao Ming will ______.
查看完整题目与答案
【简答题】Yao Ming said that _____.
查看完整题目与答案
【简答题】When is Yao Ming's birthday? ____________
查看完整题目与答案
【单选题】—That T - shirt with Yao Ming's picture on it _________ belong to Jack. He likes Yao Ming very much. —No, it _________ be his. He doesn 't like black T - shirts. [ ]
A.
can; can't
B.
must; can't
C.
must; mustn't
查看完整题目与答案
相关题目:
【单选题】— Look! Yao Ming is playing against him. — I _____ Yao Ming to beat him. [ ]
A.
hope
B.
prefer
C.
expect
D.
think
查看完整题目与答案
【单选题】The speaker did not believe ______ when he first saw Yao Ming.
A.
His own eyes
B.
Yao Ming’s size
C.
That Yao Ming should be so thin
D.
That Yao Ming was Chinese-born
查看完整题目与答案
【单选题】十二经脉中阳经与阳经的交接部位是
A.
头面部
B.
上肢部
C.
下肢部
D.
四肢末端
E.
胸部
查看完整题目与答案
【多选题】中药 化学的研究内容主要包括中药化学成分的
A.
结构类型
B.
性质与剂型的关系
C.
提取分离方法
D.
活性筛选
E.
结构鉴定
查看完整题目与答案
【单选题】十二经脉中阳经与阳经的交接部位是
A.
头面部
B.
上肢部
C.
下肢部
D.
胸部
E.
四肢未端
查看完整题目与答案
【简答题】Yao Ming is from Shanghai. Liu Xiang is from Shanghai, too.(合并为一句) Yao Ming_____ Liu Xiang_______ from Shanghai.
查看完整题目与答案
【简答题】The people of Houston hope, Yao Ming will ______.
查看完整题目与答案
【简答题】Yao Ming said that _____.
查看完整题目与答案
【简答题】When is Yao Ming's birthday? ____________
查看完整题目与答案
【单选题】—That T - shirt with Yao Ming's picture on it _________ belong to Jack. He likes Yao Ming very much. —No, it _________ be his. He doesn 't like black T - shirts. [ ]
A.
can; can't
B.
must; can't
C.
must; mustn't
查看完整题目与答案
参考解析:
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