航空港在满足选址的各项条件下,距城市的距离一般以( )km为宜。
A.10
B.20
C.30
D.50
参考答案:C
I am sure David will be able to find the library, he has a pretty good ______ of direction.
[ ]
A. idea
B. feeling
C. experience
D. sense
在Visual FoxPro的查询设计器中,“筛选”选项卡对应的SQL短语是( )。
A. WHERE
B. JOIN
C. SET
D. ORDER BY