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【简答题】
如图所示电路，已知电阻R吸收的功率P R =8W，求R。
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参考答案：
举一反三
【多选题】1281上保险业务中的意外事故包括()。
A.
货物的自然损耗或变质
B.
运输工具的搁浅，触礁
C.
载货轮船沉没
D.
强制载货物轮船与冰山相撞执行
查看完整题目与答案
【多选题】海上保险业务中的意外事故包括()。
A.
货物的自然损耗或变质
B.
运输工具的搁浅.触礁
C.
载货轮船沉没
D.
强制载货物轮船与冰山相撞执行
查看完整题目与答案
【单选题】听力原文：W: To operate the machine properly, you must keep the top closed while the machine is spinning. M: I should have read the instructions more carefully. Q: What can we infer from the conversation? ...
A.
The man made a mistake in operating the machine.
B.
The machine doesn't work properly.
C.
The woman is helping the man repair the machine.
D.
The instructions were not clear enough for the man to read.
查看完整题目与答案
【单选题】Apparently Graves sees scientists as a sober, plodding phalanx of soulless thinking machines, never making a step that hasn't been carefully thought out in advance.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【判断题】使用直流电源时,正接和反接的效果不同
A.
正确
B.
错误
查看完整题目与答案
【判断题】使用直流电源时,正接和反接的效果不同。( )
A.
正确
B.
错误
查看完整题目与答案
【多选题】以下哪些病变常可闻及舒张早期马律
A.
急性左心衰竭
B.
急性心肌梗死
C.
三尖瓣狭窄
D.
肺动脉瓣狭窄
E.
扩张型心肌病晚期
查看完整题目与答案
【单选题】There are several periods in a computer, the longest period is
A.
Instruction period
B.
Machine period
C.
Beat period
D.
CPU period
查看完整题目与答案
【单选题】The author feels her life unreal .because__________.
A.
she has become a machine .
B.
she has to deal with data
C.
she loses the interest in social life.
D.
she often has nightmares
查看完整题目与答案
【判断题】人脉搏跳动的频率约为 1.2Hz
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【多选题】1281上保险业务中的意外事故包括()。
A.
货物的自然损耗或变质
B.
运输工具的搁浅，触礁
C.
载货轮船沉没
D.
强制载货物轮船与冰山相撞执行
查看完整题目与答案
【多选题】海上保险业务中的意外事故包括()。
A.
货物的自然损耗或变质
B.
运输工具的搁浅.触礁
C.
载货轮船沉没
D.
强制载货物轮船与冰山相撞执行
查看完整题目与答案
【单选题】听力原文：W: To operate the machine properly, you must keep the top closed while the machine is spinning. M: I should have read the instructions more carefully. Q: What can we infer from the conversation? ...
A.
The man made a mistake in operating the machine.
B.
The machine doesn't work properly.
C.
The woman is helping the man repair the machine.
D.
The instructions were not clear enough for the man to read.
查看完整题目与答案
【单选题】Apparently Graves sees scientists as a sober, plodding phalanx of soulless thinking machines, never making a step that hasn't been carefully thought out in advance.
A.
Y
B.
N
C.
NG
查看完整题目与答案
【判断题】使用直流电源时,正接和反接的效果不同
A.
正确
B.
错误
查看完整题目与答案
【判断题】使用直流电源时,正接和反接的效果不同。( )
A.
正确
B.
错误
查看完整题目与答案
【多选题】以下哪些病变常可闻及舒张早期马律
A.
急性左心衰竭
B.
急性心肌梗死
C.
三尖瓣狭窄
D.
肺动脉瓣狭窄
E.
扩张型心肌病晚期
查看完整题目与答案
【单选题】There are several periods in a computer, the longest period is
A.
Instruction period
B.
Machine period
C.
Beat period
D.
CPU period
查看完整题目与答案
【单选题】The author feels her life unreal .because__________.
A.
she has become a machine .
B.
she has to deal with data
C.
she loses the interest in social life.
D.
she often has nightmares
查看完整题目与答案
【判断题】人脉搏跳动的频率约为 1.2Hz
A.
正确
B.
错误
查看完整题目与答案
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