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【单选题】
秦汉时期,人们主要的坐姿习惯是 ( )A.
盘腿坐
B.
跽坐
C.
蹲坐
D.
伸腿坐
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反馈参考答案：
举一反三
【简答题】射极输出器有何特点?有何用途?
【单选题】The government has taken some measures to solve the shortage of electricity, but it may be some time ________ the situation improves. [ ]
A.
since
B.
before
C.
unless
D.
when
【简答题】传感器通常由 敏感元件 和 转换元件 组成,其中 _ _ 是指传感器中能直接感受或响应被测量的部分; _ _ 是指传感器中能将敏感元件感受或响应的被测量转换成适于传输或测量的电信号部分。
【简答题】射极输出器有何特点?有何用途?
【简答题】It has been revealed that some government leaders _________ their authority and position to get illegal profits for themselves. A) employ B) take C) abuse D) overlook
【单选题】The government has taken some measures to solve the shortage of electricity , but it may be some time _________the situation improves.
A.
since
B.
when
C.
before
D.
unless
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