下列哪些关节内有软骨盘()。
A.髋关节
B.膝关节
C.肩关节
D.肘关节
E.腕关节
参考答案:B, E
All the citizens here strongly insist those found _____ "harmful" advertisements in the streets be
punished strictly.[ ]
A. put up
B. to put up
C. being put up
D. putting up
市场失灵及其主要表现是什么?