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【简答题】
检定一台 1.5级刻度0 ~100Pa 压力传感器,发现 50Pa 处误差最大为 1.4Pa ,问这台压力传感器是否合格?
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反馈参考答案：
举一反三
【单选题】When Alice came to, she did not know how long she ____ there.
A.
had been lying
B.
has been lying
C.
was lying
D.
has lain
【简答题】施工进度计划的表现形式主要有 和 两种。
【单选题】When Alice came to, she did not know how long she ( )there.
A.
was lying
B.
had been lying
C.
has been lying
D.
has lain
【单选题】When Alice came to, she did not know how long she ( )there.
A.
has been lying
B.
was lying
C.
has lain
D.
had been lying
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