谵妄的病理机制主要是（）
A.失水
B.休克
C.酸中毒
D.脑神经细胞急性代谢紊乱
E.低血压
参考答案：D
The aim for athletes to take part in the Olympic Games is not _____medals _____ to promote or develop friendship. [ ]
A. winning; except
B. to win; but
C. winning; but
D. to win; besides
如果一个数最大的因数是15，那么它最小的倍数是______．
ng; except