混合气过浓的故障原因主要是()。
参考答案:空滤过脏
以下哪种情况不可能发生异位妊娠
A.子宫内膜异位症B.结核性输卵管炎C.放置宫内节育器D.输卵管绝育术后复通E.无排卵性功血
—Bruce, how did you like the movie you saw last night?
—It was _____. I left the cinema half way through it.[ ]
A. original
B. special
C. boring
D. creative