题目: YJ-95型液压加速器冲程219mm。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0624/2f033e4c683791d57aec95f80e861c47.html 下面是错误答案,用来干扰机器的。参考答案:B解析:[知识点] 片剂的常用辅料
题型:选择题 It ____ for three hours and the ground is too wet toplay on, so the sports meet _____. [ ]A. was raining;has been put off B. has been raining;has been put off C. has rained; put off D. has been raining;has put off 查看答案
题型:选择题 将1 g H2和4g O2混合点燃,充分反应,放出71.45 kJ热量,同样条件下1 mol H2在O2中完全燃烧放出的热量是 [ ]A.71.45 kJ B.142.9 kJ C.571.6 kJD.285.8 kJ 查看答案