在腹部平片不易显影的结石是()
A.磷酸盐结石
B.草酸盐结石
C.尿酸结石
D.碳酸盐结石
E.混合结石
参考答案:C
婴儿腹泻发生低钙血症的原因,错误的是()。
A.大便丢失钙
B.合并活动性佝偻病
C.酸中毒使离子钙减少
D.输液后血钙被稀释
E.进食少,吸收不良
Can you lend me the book ____the other day?
A which you talked B that you talked C you talked D you talked about