下列检查中,对于诊断输卵管因素不孕没有价值的是()
A.输卵管通液检查
B.超声检查
C.宫腔镜-腹腔镜联合检查
D.子宫输卵管碘油造影
E.腹腔镜检查
参考答案:B
She will tell us why she feels so strongly that each of us has a role _______ in making the earth a better
place to live on. [ ]
A. to have played
B. to play
C. to be played
D. to be playing
城市道路路面强度、刚度、稳定性好,但维修、养护、运输费用较高的属于( )路面。
A.高级B.次高级C.中等级D.低等级