安全网主要由哪几部分组成？（）
A.网体
B.边绳
C.系绳
D.筋绳
E.包装绳
参考答案：A, B, C, D
—Would you like some water or tea?
—_____. A cup of coffee, please. [ ]
A. Neither
B. Both
C. Either
D. None
舌绛
