发生第二胎的新生儿溶血见于()
A.ABO血型不合
B.Rh血型不合
C.A、B选项均可能
D.A、B选项均不能
E.低蛋白血症
参考答案:C
------ Sorry, I can’t go camping with you. I have to prepare well enough for the entrance exam.
------_____! We can camp together next time.
A.Don’t say so
B.My pleasure
C.No problem
D.Unless
点A的坐标为(4,0),把点A绕原点逆时针旋转150°得B点,则B点的坐标为______.