My mother is a nurse(护士) and is good _____ kids. [ ]
A. to
B. for
C. with
D. a
答案:C
工程队修一条路,第一天修了总任务的10%,第二天修了总任务的12%o已知第二天比第一天多修40米,这条路长______米.
铝都具有哪些用途?