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【单选题】
磁电式传感器的下列说法,不正确的是( )。A.
磁电式传感器根本上是速度传感器
B.
磁电式传感器输出信号经积分电路可测得位移信号
C.
磁电式传感器输出信号经微分电路可测得加速度信号
D.
磁电式传感器工作时需要外接供电电源，非发电型传感器
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【单选题】女孩，7个月。因逗笑少，对玩具不感兴趣，矮小，而去医院要求检查，医生疑为智能低下。对其病因如先天性甲状腺功能低下未能肯定，如需确诊，进一步应作的实验室检查是
A.
干血滴纸片检测TSH浓度
B.
测血清T4和TSH浓度
C.
TRIt刺激试验
D.
X线腕骨片判定骨龄
E.
核素检查(甲状腺SPECT)
【单选题】女孩,7个月,因逗笑少,对玩具不感兴趣,矮小,而去医院检查,医生疑为智能低下。对其病因如先天性甲状腺功能低下未能肯定,如需确诊,进一步应做的实验室检查是
A.
干血滴纸片检测TSH浓度
B.
测血清T4和TSH浓度
C.
TRH刺激试验
D.
X线腕骨片判定骨龄
E.
核素检查-甲状腺SPE-CT
【单选题】Alex may be late. _________, he may not come at all.
A.
Worse enough
B.
Still Worse
C.
Worse still
D.
To be worse
【单选题】A native American may feel in doubt about how to tip when he is in a new place because the tipping custom ______.
A.
varies for personal services
B.
varies from place to place in the US
C.
is consistent only in large towns in the US
D.
is consistent only in small towns in the US
【单选题】女孩,7个月。因逗笑少,对玩具不感兴趣,矮小,而去医院要求检查,医生疑为智能低下。对其病因如先天性甲状腺功能低下未能肯定,如需确诊,进一步应作的实验室检查是?
A.
干血滴纸片检测TSH浓度
B.
测血清T4和TSH浓度
C.
TRH刺激试验
D.
X线腕骨片判定骨龄
E.
核素检查（甲状腺SPECT）
【单选题】Which of the following may best betray a liar?
A.
The touch of file tip of one's nose.
B.
The mouth cover gesture.
C.
The circumstances in which his lie is told.
D.
The changes of one's behavior.
【单选题】As to the author, the following are the people one may tip except ______.
A.
porters
B.
taxi drivers
C.
waiters
D.
cleaners
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