所有肾小管性酸中毒的患者均会出现代谢性酸中毒和低钾血症。()
参考答案:错
—Did you stay up late last night?
—Not very late. It was half past eleven I went to bed.
A.that
B.when
C.before
D.since
金属材料分为()金属和黑色金属两大类。
A.重
B.白色
C.无色
D.有色