汽车制动时某一轴的车轮或两轴的车轮发生横向滑动称为()。
A.汽车滑转
B.制动跑偏
C.制动侧滑
D.行驶侧滑
参考答案:C
________ you are supposed to do ________ you don't like a thing is change it. Don't complain.
A.That; why
B.What; when
C.What; where
D.That; how
治疗慢性再障时应首选()。
A.造血干细胞移植
B.联合应用造血刺激因子
C.免疫抑制剂
D.免疫抑制剂联合雄性激素
E.雄性激素