Most babies have a closed ductus arteriosus by 72 hours after birth.大多数婴儿在出生后72小时内动脉导管闭合.Figure B shows a heart with a patent ductus arteriosus.图B显示了存在“开放性动脉导管”问题的心脏.What are the symptoms of a patent ductus arteriosus?动脉...
He is abstracting a story for a book review.他正在为篇书评撰写故事梗概.The college published a drama review.学院出版了一份戏剧评论刊物。This article is the seventh biannual review on photometric analysis.本文是《分析试验室》定期评述中“光度分析”的第七篇文章.Such exemptions...
Pressure of life caused him to crack up.生活的压力使他身体垮了.I kept a straight face as long as I could, but I finally had to crack up.我尽量板着面孔, 但最后还是控制不住失声大笑起来.If you go on working like this, you'll crack up.你要是继续这样干下去, 你的身体会...
Used in car audio, cassette tape recorders, pocked calculator circuits, etc.适用于汽车音响 、 盒式收录机 、 袖珍计算器等电路.They plugged in their tape-recorders.他们给录音机接上了电源。Cassette recorders cannot rival the sound quality of CDs.卡式磁带录音机的音质无...