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【单选题】
【图片】如图所示回路,当回路中电磁铁2YA通电,1YA,3YA断电时,假设泵输出流量为q,问通过阀1的流量为?‍
A.
0
B.
q/2
C.
q/4
D.
q
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参考答案:
举一反三
【单选题】听力原文:W: You look upset. Anything wrong? M: I failed in physics exam again in spite of all the efforts I made. Q: What do we know about the man from the conversation? (17)
A.
he didn't work as hard as he was supposed to.
B.
He didn't pass the physics exam.
C.
He did better in an earlier exam.
D.
he found something wrong with the exam.
【单选题】听力原文:W:You look upset.Anything wrong? M:I failed in the physics exam again…spite of all the efforts I made. Q:What do we know about the man from the conversation? (15)
A.
He didn't work as hard as he was supposed to.
B.
He didn't pass the physics exam.
C.
He did better in an earlier exam.
D.
He found something wrong with the exam.
【单选题】人们平时用电表测得交流电压和电流值的大小是指它们的()。
A.
最大值
B.
有效值
C.
瞬时值
D.
平均值
【单选题】— You look upset. What’s the matter ? — I had my proposal ______ again.
A.
turned over
B.
turned on
C.
turned off
D.
turned down
【判断题】蓝牙技术能够在10米的半径范围内实现点对点或一点对多点的无线数据和声音传输,但最多可以接入7个设备。
A.
正确
B.
错误
【单选题】人们平时用电表测得交流电压和电流值的大小是指它们的 ____ 。
A.
有效值
B.
最大值
C.
瞬时值
D.
平均值
【单选题】零基预算在编制时,对于所有的预算费用支出均以( )为基础。
A.
B.
可能需要考虑现有费用
C.
现有费用支出
D.
基期费用支出
【单选题】人们平时用电表测得的交流电压和交流电流值的大小是指它们的( )。
A.
最大值
B.
有效值
C.
瞬时值
D.
平均值
【单选题】零基预算在编制时,对于所有的预算费用支出均以( )为基底。
A.
可能需要
B.
C.
现有费用支出
D.
基期费用支出
【单选题】零基预算在编制时,对于所有的预算费用支出均以( )为基底。
A.
可能需要
B.
零字
C.
现有费用支出
D.
基期费用支出
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