检验酒精中是否含有水,可选用的试剂是
A.金属钠
B.浓硫酸
C.无水硫酸铜
D.胆矾
答案:C
— ________ the editor at the airport?
— No, he ________ away before my arrival. [ ]
A. Have you met; has driven
B. Had you met; was driven
C. Did you meet; had been driven
D. Have you met; had driven
下列城市总体规划需要报国务院审批的包括()。
A.直辖市的城市总体规划
B.省人民政府所在地城市
C.自治区人民政府所在地城市
D.城市人口在100万以下的城市
E.城市人口在100万以上的城市