题目内容:
As the number of local residents' visits to public swimming facilities climbs,__________the demand for lifeguards to supervise them.
A.as to B.Aas does C.as long as D.whereas
参考答案:
答案解析:
As the number of local residents' visits to public swimming facilities climbs,__________the demand for lifeguards to supervise them.
A.as to B.Aas does C.as long as D.whereas