一定时期内一个国家(地区)外出旅游人数与总人口之比称为()
A.旅游发生率
B.旅游重游率
C.总出游率
D.净出游率
参考答案:D
The girl went to have piano lessons at the training center with her sister she would stay for an hour.
A.who
B.where
C.which
D.what
获得初级救生员国家职业资格证书后,可以在()担任救生员工作。
A.上海市
B.华东地区
C.沿海地区
D.全国各地