属于形位公差的是（）
A.重量差
B.直线度
C.尺寸差
D.材质差
参考答案：B
I will go to Beijing on business tomorrow. Do you have anything ______ to your son in Beijing University?
A．to be taken
B．to take
C．taken
D．being taken
（EMB145）CMC连接到哪个IC？（）
A.IC 600 1
B.IC 600 2
C.IC 600 1和IC 600 2
