现代假肢多采用（）
A.上肢假肢
B.下肢假肢
C.壳式假肢
D.临时假肢
E.骨骼式假肢
参考答案：E
The team, ______ to climb the world’s second tallest mountain twice, finally decided to give up.
A．having attempted
B．attempting
C．attempted
D．to attempt
伞菌目担子果有哪些基本结构？其担子果有哪些类型，简述其发育过程？
