题目内容

____yourEnquiryNo.123,wearesendingyouacatalogandasampleforyourreference.

According
B. Asper
C. As
D. About

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Wearepleasedtosaythatweare____tosupplyyou thegoodsyouwant.

A. ofaposition
B. for aposition
C. inaposition
D. ataposition

____yourpricesareright,youwillfindareadymarketforyourproducts.

A. Should
B. Toprovide
C. Provided
D. Provide

工序尺寸的公差确定一般按“入体原则”来标注,处于外表面其最大极限尺

A. 对
B. 错

工序余量等于上道工序尺寸与本道公差尺寸之差的绝对值。

A. 对
B. 错