【简答题】工序尺寸的公差一般按( )原则标注;毛坯尺寸的公差一般采取( ) 标注。
【简答题】教材 p73 案例一 以小组形式讨论分析思考题 1 和 2 请将分析结果以 PPT 形式提交,每组提交一份
【判断题】预应力混凝土预制桩定额已综合了电焊接桩。
【单选题】生活在同一草原牛和羊吃同样的草,但牛肉和羊肉的味道却有很大不同,造成这一现象的直接原因和根本原因是
【单选题】This text is mainly about__________. 查看材料
A.
the scientific leadership of the U.S.
B.
the shortage of scientists in the U.S.
C.
the rapid globalization of science
D.
better communication and globalization
【单选题】Which of the following is an example of telecommuting as described in the passage?
A.
A scientist in a laboratory developing plans for a space station.
B.
A technical writer sending via computer documents created at home.
C.
A computer technician repairing an office computer network.
D.
A teacher directing computer to assist learning in a private school.