I _____________ call my mother first. [ ]
A. may
B. can
C. need to
答案:C
“心下有痰饮,胸胁支满,目眩”,治用()
A.小半夏汤
B.五苓散
C.真武汤
D.肾气丸
E.苓桂术甘汤
以下哪个系统页面不能在有故障时自动显示?()
A.门(DOOR)
B.跳开关(C/B.
C.液压(HYD.
D.燃油(FUEL)