对于众多个人用户来说,接人因特网最经济、简单、采用最多的方式是( )。
A. 专线连接
B. 局域网连接
C. 无线连接
D. 电话拨号
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()the size and nature of a business, its main goal is to earn a profit.
A. Whatever
B. Whichever
C. Whereas
D. Because
The residents,()had been damaged by the flood, were given help by the Red Cross.
A. all of whose homes
B. all of their homes
C. all their homes
D. all that homes
在SQL语言的SELECT语句中,实现投影操作的是( )子句。
A. SELECT
B. FROM
C. WHERE
D. GROUPBY
It took a lot of imagination to come up with such a(an) ______ plan.
A. bright
B. clever
C. brilliant
D. ingenious