交感性眼炎可发生于外伤或手术后_______天至_______内,但多发生在____ 发布时间:2017-07-18 00:35 │ 来源:www.tikuol.com 题型:填空题 问题: 交感性眼炎可发生于外伤或手术后_______天至_______内,但多发生在_______至_______。
题型:填空题 120℃时,某气态烃的混合物在密闭容器内与氧气完全燃烧后再恢复到原状况,发现燃烧前后容器内的压强保持不变,则该气态烃的混合物可能是 [ ]A.C2H6与C2H4 B.C2H6与CH4 C.C3H8与CH4 D.CH4与C2H4 查看答案
题型:填空题 He was watching TV. ______, his wife was cooking.[ ]A. while B. when C. at the time D. at the same time 查看答案