环形等径预应力混凝土支柱横向裂纹宽度超过（）且长度超过不规定值的，要及时修补。
A.0.1mm
B.0.2mm
C.0.3mm
D.0.5mm
参考答案：B
终末血尿的血液来自（）
A.肾
B.膀胱以上
C.输尿管
D.膀胱颈部
E. * * 口
My classmate Lily is in English because she once stayed in the U.S. for several years.
A．loose
B．active
C．fluent
D．good
