齿距p=7mm的标准直齿圆柱齿轮的模数m=5mm。
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专业技术职称本质上是职业资格评价，而不是职务。
A. 正确
B. 错误
义务教育法对义务教育阶段学校收费的规定是（）。
A. 收学费，不收杂费
B. 不收学费、杂费
C. 不收书本费、杂费
In plotting a running fix，how many fixed objects are needed to take your lines of position from? （）
A. Three
B. Two
C. One
D. None
Which of the following statements concerning fuel atomization in a diesel engine cylinder is correct?（）
A. The greater the atomization, the greater the penetration
B. The greater the atomization, the less the penetration
C. The degree of atomization has nothing to do with the degree of penetration
D. Atomization and penetration are one and the same
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