端承摩擦桩
参考答案：
指桩端具有较好的持力层，有一些端阻力，但在极限承载力状态下，桩顶荷载主要有桩侧阻力承受。
It is only when an NBA player has aged and been through many battles ______ he learns an
important lesson; there is no “I” in “team”．
A．after
B．before
C．what
D．that
THDS探测站无线发射设备工作频率为（），频率稳定度为±510-6Hz/8h.
A.458.575MHz/468.575MHz
B.458.575MHz/478.575MHz
C.448.575MHz/468.575MHz
D.448.575MHz/468.575MHz
