正常成年人舒张压为()。
A.20—30mmHg
B.30—50mmHg
C.60—90mmHg
D.90—120mmHg
参考答案:C
骨与关节结核在某些部位好发的原因中,不包括()
A.该部位负重大
B.该部位活动多
C.该部位易于遭受慢性或积累性劳损
D.该部位肌肉附着少
E.该部位血运丰富
By the time we _____ to the cinema, the film _____. [ ]
A. got, began
B. have got, had begun
C. got, had begun
D. had got, began