诊断矽肺的主要依据是 A.接触粉尘浓度、X线胸透 B.X线胸透、职业史 C.X线胸片 发布时间:2018-05-02 04:27 │ 来源:www.tikuol.com 题型:单项选择题 问题: 诊断矽肺的主要依据是A.接触粉尘浓度、X线胸透B.X线胸透、职业史C.X线胸片、职业史D.化验检查、X线胸片E.临床症状、体征、职业史
题型:单项选择题 Taking buses in Beijing is _____ than taking a taxi.[ ]A. more cheapB. much cheaperC. a little cheapD. less cheaper 查看答案
题型:单项选择题 I didn't believe ______ he said because he often tells a lie . [ ]A. that B. which C. what D. if 查看答案