轻型滑轮的工作负荷（）kN。
A.1.0
B.2.0
C.不小于5
D.3.0
参考答案：C
Would you like __________ with us? [ ]
A. to go camping
B. to go to camp
C. going camping
D. going to camp
普通热轧带肋钢筋有（）
A.HRB300
B.HRB335
C.HRB400
D.HRB500
