指挥吊车时,指挥人员应距吊物()远。 A.3m B.4m C.5m 发布时间:2018-03-07 04:18 │ 来源:www.tikuol.com 题型:单项选择题 问题: 指挥吊车时,指挥人员应距吊物()远。A.3mB.4mC.5m
题型:单项选择题 A ______ and ______ has been bought for you. Which is wrong? [ ]A. gold watch, chain B. knife, fork C. desk, chair D. pen, pencil 查看答案
题型:单项选择题 常用的局麻药在相同剂量和浓度时,它们的毒性排位哪项正确()A.丁卡因>利多卡因>普鲁卡因B.普鲁卡因>利多卡因>丁卡因C.丁卡因>普鲁卡因>利多卡因D.利多卡因>丁卡因>普鲁卡因E.利多卡因>普鲁卡因>丁卡因 查看答案