生产线内的“一个流”的生产组织形式是指上下道工序之间流动在制品的量与时间均不超过()工序的装夹数量。
A、紧后
B、紧前
C、所有前向
D、所有后向
参考答案:B
Whose picture is better, Jack's or Tom's?
Both of them are good. I think Jack draws _____ Tom. [ ]
A. as good as
B. as well as
C. better than
D. worse than
肋骨斜位摄影,目的是观察()
A.腋中线,肋骨上斜部骨质情况
B.腋中线,肋骨直线部骨质情况
C.腋后线,肋骨弯曲部骨质情况
D.腋前线,肋骨弯曲部骨质情况
E.腋中线,肋骨弯曲部骨质情况