He stood against the wall with his right

休止角用来表示( )

A．粉体润湿性
B．粉体吸湿性
C．粉体流动性
D．粉体粒子大小
E．粉体比表面积

临床资料：男，51岁，常规体检。超声综合描述：胆囊壁毛糙增厚，最大厚度0.9cm，囊壁回声强弱不均。超声提示（）

A.胆囊腺肌症（弥漫性）

B.胆囊壁胆固醇结晶沉积

C.胆囊息肉

D.胆囊癌

China won 100 medals in the Beijing Olympic Games, which is almost _____they won at the Sydney Olympic Games.

A．twice as many as

B．as many as twice

C．as much as twice

D．twice as much as

行股静脉穿刺置管时，其穿刺点定位为股动脉搏动的什么位置？ （）

A．内侧0.5～1 cm

B．内侧2.0～2.5 cm

C．外侧0.5～1 cm

D．外侧2.0～2.5 cm

创业就是要使自己的事业不断发展壮大，一个成功的创业者所选择的创业行业应该是成长性比较高的行业。