心墙坝或斜墙坝施工，坝面应向上倾斜（）的坡度。
A.1%－2%
B.3%－4%
C.4%－5%
参考答案：A
--- Thanks a lot for your book. I found it very interesting.
--- ______. I’m glad you enjoyed it.
A．All the best
B．It is nothing
C．No thanks
D．Very well
为保证保险合同成立生效，保险经纪从业人员应取得客户对保险方案的( )。
A．书面认可 B．口头认可C．口头加书面认可D．口头或书面认可
