按承台与地面的相对位置，桩基可分为那两类？
参考答案：低承台桩基和高承台桩基。
患者有鼓室积液时鼓室压力图常为（）。
A.A型
B.As型
C.Ad型
D.B型
E.C型
There was never any time for Kate to feel lonely, _____ she was an only child.[ ]
A. ever since
B. now that
C. even though
D. even as
