工程咨询行业行政管理的最主要内容是( )。
A．收费管理
B．个人执业资格的管理
C．执业检查
D．工程咨询单位的资格认定
参考答案：C
-I went to see you yesterday evening. But you weren't in. Where were you then?
-I _________ a walk by the lake with my husband.[ ]
A. was having
B. am having
C. have had
D. have
（）是反映井下岩石最直观、最实际的第一性资料。
A、岩屑
B、岩心
C、钻时曲线
D、测井曲线
