股骨头骨软骨病,多见于
A.3~10岁B.15~25岁C.35~55岁D.65~75岁E.股骨颈骨折后
参考答案:A
There ________ some milk, two eggs and a few cakes on the table. [ ]
A. is
B. are
C. has
D. have
立式浮顶油罐液面高度5m以上,测温位置应取()点。
A、一
B、二
C、三
D、四