题目内容
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[主观题]
Which are the principles (stages) for yarn manufacturing?
Which are the principles (stages) for yarn manufacturing?
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Which are the principles (stages) for yarn manufacturing?
A.of which B.on which
C.from which D.above which
A.of which
B.with which
C.about which
D.into which
A、for which
B、in which
C、of which
D、from which
【B9】
A.in which
B.on which
C.to which
D.for which