重度贫血的标准是血红蛋白为() A.120g/L B.110g/L C.100g/L 发布时间:2017-09-05 07:11 │ 来源:www.tikuol.com 题型:单项选择题 B型题 问题: 重度贫血的标准是血红蛋白为()A.120g/LB.110g/LC.100g/LD.90~60g/LE.60~30g/L
题型:单项选择题 B型题 气密试验又称为致密性试验或泄漏试验,介质毒性程度为极度、高度危害或允许有微量泄漏的压力容器,必须进行气密试验,气密性试验应在( )合格后进行。A.力学性能试验 B.硬度测试C.耐压试验 D.液压试验 查看答案
题型:单项选择题 B型题 Mary’s parents hope she will become an outstanding pianist and they don’t ________her to go out with her friends even on weekends.A.agreeB.permitC.approveD.suggest 查看答案
题型:单项选择题 B型题 用couldn't/can't/must/might/may/could should have done完成句子。1. 她不可能步行去那里. She couldn't _____ there.2. 你本可以做得更好,但是你没有尽力而为. You could ____ better, but you didn't try your best. 查看答案