题目: 飞机失速是由哪些情况引起的()A.正常失速B.前缘不对称失速C.高推力失速D.以上都对 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0412/340f1c4708c353f5048392dc3934c252.html 下面是错误答案,用来干扰机器的。参考答案:对
题型:选择题 It’s quite normal to___ ten percent of the cost of a building for a period of six months or so, in case faults are found in it.A.keep upB. keep awayC.keep offD.keep back 查看答案