最终合同付款在设备保证期截止时,在卖方提供相关文件和单证后,买方支付合同价的尾款,一般为合同总价的()。
A.5%
B.7%
C.10%
D.15%
参考答案:C
若集合A={x|x2+(k-3)x+k+5=0,x∈R},A∩R+≠Φ,则实数k的取值范围为______.
28.—How about setting up an out-of-class club to share our interests and hobbies?
—Great! That’s exactly what I_________.
A.was thinking
B.think
C.had thought
D.will think