更年期功血在激素治疗前，宜常规行____________，以排除____________。
参考答案：分段诊刮术‖子宫内膜病变
—What about having a picnic tomorrow morning?
—Well, I don’t think it’s good ________ because the radio says it will be rainy tomorrow.
A．idea
B．suggestion
C．advice
D．way
等差数列{an}中，S15>0，S16<0，则使an>0成立的n的最大值为( )
A．6
B．7
C．8
D．9
