在直角坐标系中，点M（sin50°，-cos70°）所在的象限是
A.第一象限
B.第二象限
C.第三象限
D.第四象限
答案：D
— The weather has been very hot and dry.
— Yes. If it had rained even a drop, things would be much better now! And my vegetables ________. [ ]
A. wouldn't die
B. didn't die
C. hadn't died
D. wouldn't have died
痰火扰神证中，与神昏同见的是（）
A.溲赤便秘
B.渴喜冷饮
C.舌红苔黄腻
D.高热抽搐
E.脉象细数
