In the first half of the match, Number 5

已知等腰三角形两边长分别是x²-8x+15=0的两根，求此等腰三角形的周长。

We all think it is Mr Wang as well as his parents that _______ for his son’s bad performance at school.

A．are to blame

B．is to be blamed

C．are to be blamed

D．is to blame

发生在非正常妊娠期的卵巢囊肿是（）。

A.囊腺瘤

B.良性畸胎瘤

C.黄素囊肿

D.黄体囊肿

E.以上都不是

家重点造林工程的造林补助为（）。

A.50元/亩

B.60元/亩

C.70元/亩

D.80元/亩

下列哪项不属于捻转补法（）

A.捻转角度小

B.捻转频率慢

C.捻转用力重

D.操作时间短

E.针下得气后操作