题目内容

偶发性质量缺陷是随机因素引起的工序质量波动。( )

A. 对
B. 错

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经常性质量缺陷是随机因素引起的工序质量波动。( )

A. 对
B. 错

工序质量审核是一项全员参加的活动。( )

A. 对
B. 错

We ______ up the courage to ask the high-rank official exactly what it’s like down those forbidden streets.

A. stooped
B. mastered
C. mustered
D. took

But they need less space because they ______ around poles or sticks.

A. turned
B. circle
C. curve
D. twist