流通加工与制造加工相比（）。
A.组织形式一样
B.作业方式相同
C.简单
D.考核标准不同
参考答案：C
----You’d better_____ the work. You look so tired.
---- Thank you, but I have a lot of things to do.
A．stop doing
B．to stop doing
C．stop to do
D．to stop to do
Li Lei didn't come to school today. What _______ to him? [ ]
A. was happened
B. happened
C. is happened
D. happening
