题型:问答题 简答题 —You speak English very well. — _____. [ ]A. Thank you B. No, my English isn't good C. Don't say that 查看答案
题型:问答题 简答题 航空母舰上一般有帮助舰载机起飞的弹射系统,已知舰载机在跑道上加速时的加速度为4.5m/s²,若该飞机滑行100m时速度达到50m/s而起飞,则弹射系统使飞机具有的初速度为()A.40m/sB.30m/sC.20m/sD.10m/s 查看答案