语言謇涩，病因多属
A．热扰心神B．痰火扰心C．风痰阻络D．心气不足E．心气大伤
参考答案：C
Li Na, the Chinese top tennis player was born _________ February 26, 1982.
A. on B. at C. in
我国货物列车最大装载高度为（）mm。
A、5100
B、5200
C、5300
D、5400
