下列金属不可作为金属覆盖层的是()。
A.钠
B.金
C.银
D.锌
参考答案:A
1比任何小数都大.______.(判断对错)
______ hard work made him ______ out.[ ]
A. Ten hour's; tiring
B. Ten hours'; tired
C. Ten hour; tired
D. Ten hour's; tired