在起吊重物时,其绳索间的夹角一般不大于()度。
A、30
B、45
C、90
D、60
参考答案:C
-Why not go and have dinner m a restaurant?
-______. It's too expensive. [ ]
A. Why not
B. I agree
C. I'm afraid not
D. I'm sure
提出"诸风掉眩,皆属于肝"的著作为
A.以腹部胀大为主,四肢肿不甚明显B.面色红赤C.面色咣白D.面色青晦,面颈部有血痣赤缕E.其浮肿多从眼睑开始,继则延及头面,或下肢先肿,后及全身