已知:3x=2,求3x+2的值.______
∵3x=2,
∴3x+2=3x?32
=2×9
=18.
—Don't you think Obama is _____ success?
—Yes, I do. He is popular with _____ public in America. [ ]
A. / , a
B. a, a
C. the, a
D. a, the
下列各项中,不是自制原始凭证的是()。
A.收料单
B.发票
C.单位差旅费报销单
D.领料单