在极限承载力状态下，桩顶荷载由桩侧及桩尖共同承受的桩是（）。
A.端承摩擦桩
B.摩擦桩
C.摩擦端承桩
D.端承桩
参考答案：A
Though these dresses are low in quality, they may ____to women who don’t want to spend much on clothes.
A．refer
B．adjust
C．apply
D．appeal
非空的循环单链表head的尾结点(由p所指向)，满足
A．p-＞next==NULL
B．p==NULL
C．p-＞next=head
D．p=head
