第22题: [填空题]A new start means Victor is (self-confidence) ______ again after he has got several times of failure. 参考答案:self-confident 答案解析:[解析] self-confidence(自信)是名词,根据系表结构句型be serf-confident需用形容词 self-confident作is的表语。
第23题:[单选题]Fuel quantity detection value would be different in different aircraft pitch attitude, it might cause overweight landing. According to Chief Pilot Advisory, to prevent overweight landing, current aircraft weight should be less than MLW - ()KG when captured LOC. A.200 B.150 C.100 参考答案:A
第33题: [单项选择]20世纪30年代,人们开始试用瑞士化学家缪勒发明的滴滴涕。正当人们庆幸自己找到置害虫于死地的高效农药时,害虫的天敌也近乎绝迹了。同时,由于滴滴涕的残毒可以长期累积,已经引起遗祸无穷的世界性公害。 上面一段话说明的道理是()。 A. 如果使用不当,高效农药的应用也会带来世界性公害 B. 滴滴涕已经被证明是一种对人类有害无益的农药 C. 滥施高效农药对害虫的天敌也会造成毁灭性灾难 D. 某些科学成果是把“双刃剑”,对其利用需持谨慎态度 参考答案:D 答案解析: