碱性焊条比酸性焊条的脱氧能力()。A.弱 B.相同 C.强 D.不能比较 发布时间:2017-10-18 22:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 碱性焊条比酸性焊条的脱氧能力()。A.弱B.相同C.强D.不能比较
题型:单项选择题 有关市售品亚胺培南的描述,哪项不正确()A.是亚胺培南与西司他丁的复方制剂,二者比例为1:1B.目前抗菌药物中抗菌作用最强的药物C.对β-内酰胺酶非常稳定D.临床上常用于重症感染的治疗,但要考虑患者的肾功能E.抗菌谱最广,包括大肠杆菌、铜绿假单胞菌、军团菌等大多数细菌 查看答案
题型:单项选择题 用所给单词的适当形式填空。每个单词限用一次。speak proud empty safe term小题1:There are three in a year in the school in the USA.小题2:My English is a little poor. I want to improve it.小题3:Confucius is a great thinker who is the of all the Chinese.小题4:When Chang’e Ⅰlanded ________ on the earth, all Chinese were cheerful.小题5:The dustbins in the streets should be every day. 查看答案