轨道车换向箱差速器两端的轴承间隙必须按规定的间隙()作调整。
A、0.15~0.20mm
B、0.2~0.3mm
C、0.35~0.4mm
D、0.10~0.15mm
参考答案:B
The famous star got injured before her concert, made her fans worried.
A.who
B.which
C.that
D.what
厥阴头痛常选用下列何药作引经药()
A.白芷葛根
B.羌活蔓荆子
C.藁本吴萸
D.川芎细辛
E.苍术防风