根据钢丝绳股断面可把钢丝绳分为圆形股钢丝绳、三角股钢丝绳、椭圆股钢丝绳。（）
A、方形股
B、圆形股
C、三角股
D、椭圆股
参考答案：B, C, D
You have all the food. What would you do next week?[ ]
A. bought
B. used for
C. used as
D. used up
The students in the higher grades _______ I met in a football game are my good friends now. [ ]
A. when
B. which
C. who
