下列何症属于湿性趋下的表现
A.内脏下垂
B.下肢关节红肿
C.妇女带下
D.小便短赤
参考答案:C
— How does your sister go to school?
— ________________.
A. In car
B. By the car
C. By car
D. I like a car
滚动轴承一般由()、()、()和保持架组成。