我国青铜器产生于（）
A.夏代
B.商代
C.西周
D.父系氏族公社时期
参考答案：A
— I really thought I'd pass the driving test.
— Oh, well, Bill, ______. [ ]
A. you are wrong
B. better luck next time
C. best wishes
D. I completely agree with you
异位ACTH综合征较常见的水电解质及酸碱平衡紊乱是（）
A.稀释性低钠血症伴代谢性碱中毒
B.低血钾性碱中毒
C.高血钾性碱中毒
D.低血钾性酸中毒
E.高血钾性酸中毒
