皮皮学，免费搜题
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【多选题】
麦克风是一种常用的电子设备,它的内部就是一个小型传感器,可以把声音变成电信号.它的种类很多,其中有一种是动圈式的,它的工作原理是在弹性膜片后面黏接一个轻小的金属线圈,该线圈处在柱形永磁体的辐射状磁场中,当声音使膜片振动时,就能将声音信号转变成电信号,下列说法正确的是 ( )
A.
.该传感器是根据电流的磁效应工作的
B.
.该传感器是根据电磁感应现象工作的
C.
.膜片振动时,线圈内不会产生感应电流
D.
.膜片振动时,线圈内会产生感应电流
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【单选题】某溶液的pH为9.180,其氢离子活度为
A.
6´10-10
B.
6.6´10-10
C.
6.6´10-10
D.
6.6´10-10
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【单选题】Kate asks questions about the director. What mistake does she make?
A.
She thinks the director is a woman.
B.
She thinks the director is a family member.
C.
She thinks the director is a man.
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【单选题】某溶液的氢离子活度为1×10-9mol/L,其pH值应为9,pOH值应为( )。
A.
9
B.
6
C.
5
D.
8
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【单选题】She admired the director to such an extent that she took his words as____oracles.
A.
divine
B.
rebellious
C.
faithful
D.
unbearable
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【单选题】某溶液的pH为9.180,其氢离子活度为
A.
610-10
B.
6.610-10
C.
6.6110-10
D.
6.60710-10
查看完整题目与答案
【多选题】某溶液的氢离子活度为1×10-9mol/L,其pH值应为 ,POH值应为 。
A.
9；
B.
6；
C.
5；
D.
8
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【简答题】法定盈余公积金按照_______扣除______________后的10%提取。
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【简答题】A．She is the director of the group. B．She is playing the violin. C．She is playing the piano. D．She is playing the bass.
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【多选题】进气支管绝对压力传感器常见故障有()
A.
电源或信号电路短路或断路
B.
传感器损坏
C.
进气道内有杂物堵塞或有油污
D.
真空软管连接不当或破裂
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【简答题】A．She is the director of the group. B．She is playing the piano. C．She is playing the violin. D．She is playing the bass.
查看完整题目与答案
相关题目：
【单选题】某溶液的pH为9.180,其氢离子活度为
A.
6´10-10
B.
6.6´10-10
C.
6.6´10-10
D.
6.6´10-10
查看完整题目与答案
【单选题】Kate asks questions about the director. What mistake does she make?
A.
She thinks the director is a woman.
B.
She thinks the director is a family member.
C.
She thinks the director is a man.
查看完整题目与答案
【单选题】某溶液的氢离子活度为1×10-9mol/L,其pH值应为9,pOH值应为( )。
A.
9
B.
6
C.
5
D.
8
查看完整题目与答案
【单选题】She admired the director to such an extent that she took his words as____oracles.
A.
divine
B.
rebellious
C.
faithful
D.
unbearable
查看完整题目与答案
【单选题】某溶液的pH为9.180,其氢离子活度为
A.
610-10
B.
6.610-10
C.
6.6110-10
D.
6.60710-10
查看完整题目与答案
【多选题】某溶液的氢离子活度为1×10-9mol/L,其pH值应为 ,POH值应为 。
A.
9；
B.
6；
C.
5；
D.
8
查看完整题目与答案
【简答题】法定盈余公积金按照_______扣除______________后的10%提取。
查看完整题目与答案
【简答题】A．She is the director of the group. B．She is playing the violin. C．She is playing the piano. D．She is playing the bass.
查看完整题目与答案
【多选题】进气支管绝对压力传感器常见故障有()
A.
电源或信号电路短路或断路
B.
传感器损坏
C.
进气道内有杂物堵塞或有油污
D.
真空软管连接不当或破裂
查看完整题目与答案
【简答题】A．She is the director of the group. B．She is playing the piano. C．She is playing the violin. D．She is playing the bass.
查看完整题目与答案