霍乱的主要临床症状有()
A.脱水
B.循环衰竭
C.酸碱失衡
D.呕吐
E.急骤、剧烈腹泻
参考答案:A, B, C, D, E
Can you tell me_____the train was invented? [ ]
A. which
B. who
C. when
单个出资人及其关联方投资入股的金融租赁公司不得超过()家。
A.1
B.2
C.3
D.4