可以协助诊断输卵管妊娠破裂的检查项目是（）。
A.宫腔镜检查
B. * * 镜检查
C.B型超声检查
D.尿妊娠试验
E.后穹隆穿刺术
参考答案：E
Tsinghua University, _____in 1911, is home to a great number of outstanding figures.
A．found
B．founding
C．founded
D．tobefounded
—Let's play tennis.
—Sorry. I___________a tennis racket.[ ]
A. have
B. don't have
C. not have
D. has
