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【简答题】
斜齿圆柱齿轮传动的正确啮合条件是 ， ， 。（外啮合） A. 模数相等 B. 压力角相等 C. 螺旋角大小相等，方向相反
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举一反三
【简答题】Manufacturers mentioned in the passage were obliged to make the best of warning labels sb as to ______ .
【简答题】Manufacturers mentioned in the passage were obliged to make the best of warning labels so as to ______.
【单选题】It seems that manufacturers will remain reluctant to make improvements unless______.
A.
they can do so at a very low cost
B.
they find their machines hard to operate
C.
they have difficulty selling their products
D.
they receive a lot of complains about their machines
【简答题】The manufacturers shall, before the goods is delivered ______ , make a precise and comprehensive inspection of the goods ______ regard to its quality, specifications, performance and quantity, weight,...
【单选题】'인백지기천지(人百之己千之)'라는 말이 있다. 이 말은 '다른 사람들이 백을 노력할 때 자신은 천을 노력한다'는 뜻으로 신라시대 유명한 작가가 남긴 말이다. 그 작가의 이름은?
A.
원효
B.
최치원
C.
이규보
D.
박지원
【单选题】It seems that manufacturers will remain reluctant to make improvements unless ______.
A.
they can do so at a very Iow cost
B.
they find their machines hard to operate
C.
they have difficulty selling their products
D.
they receive a lot of complaints about their machines
【单选题】It seems that manufacturers will remain reluctant to make improvements unless______.
A.
they can do so at a very low cost
B.
they find their machines hard to operate
C.
they have difficulty selling their products
D.
they receive a lot of complaints about their machines
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