分解因式:a2b-2ab2+b3=______.
a2b-2ab2+b3=b(a2-2ab+b2)--(提取公因式)
=b(a-b)2(完全平方公式).
女性,48岁,月经紊乱1年,偶感潮热、出汗,现 * * 出血20余天。既往月经规律5~6/28~30天,经量不多。妇科检查:宫颈光滑,子宫正常大小,双附件正常,诊刮子宫内膜单纯型增生。最可能的诊断是()
A.黄体萎缩不全
B.黄体功能不足
C.无排卵性功能失调性子宫出血
D.有排卵性功能失调性子宫出血
E.子宫内膜息肉
词汇
小题1:The f__________is good at fishing.He always sells the fish for money.
小题2:He was an h__________boy. We all like staying with him .
小题3:The girl is a little shy. She has a small c________of friends.
小题4:W_________happens to you,I will be always there..
小题5:Rosa is in a _______that vegetables are good for health.
小题6: Her ________(死)was a great shock(打击)to me and made me very sad.
小题7:She’s always ______ (惹,造成)trouble for her parents.
小题8:Yesterday our teacher asked us to correct the mistakes________(主要).
小题9:It is __________(期待) that we will have an English speech contest.
小题10:We will have many good ___________(经历) if we can volunteer our time.