尿液里不应该有的成分是 [ ]
A.水
B.无机盐
C.葡萄糖
D.尿素和尿酸
答案:C
—What made Tom so sad? —_______.
A.His bicycle had been stolen
B.His bicycle to be stolen
C.His bicycle’s being stolen
D.His bicycle was stolen
组成踝关节的骨骼有()。
A.胫骨下端
B.跟骨
C.距骨
D.腓骨下端
E.足舟骨