下述哪项属子宫附件
A．阴唇孕带
B． * * 口
C．大阴唇
D．小阴唇
E．输卵管
参考答案：E
He found it increasingly difficult to read, ______ his eyesight was beginning to fail.
A. though B. for C. but D so
太阳能热水器应用的物理原理有 [ ]
A．吸热板表面颜色深，表面积大，容易吸收太阳的辐射热
B．水的对流
C．连通器原理
D．透明罩可透过各种色光
