CRH2外风挡的作用是什么?
参考答案:
为了抑制从车体侧面发生的噪声,以及在停车时,为防止乘客掉下河抑制车体的振动,采用了压缩形外风挡,使车体间的车辆连接部位平滑。
The old man was quite weak after the accident. So he _____. [ ]
A. must be take care of
B. must take care of
C. must be looked after
D. must look after
寒、热、湿邪易引起什么病变从而导致妇科疾病
A.肾
B.气分
C.肝
D.脾
E.血分