第11题: [单项选择]When Edison died, it was proposed that the Americans ______ all power in their homes, streets and factories for several minutes in honor of this great man. A. turn off B. turned off C. must turned off D. would have turned off 参考答案:A 答案解析:it is proposed that后面要使用虚拟语气——(should)+动词原形,因此选A。
第25题:[单选题]62 题, 本小题 1 分 直流充电枪直流充电时时,供电接口和车辆接口应具有锁止功能,锁止功能符合(____)相关要求。 A. GB/T20234.1-2015 B. GB/T20234.2-2015 C. GB/T20234.3-2015 D. GB/T20234.4-2015 参考答案:A
第31题: [单项选择]DNA的解链温度指的是() A. A260mm达到最大值时的温度 B. A260mm达到最大值的50%时的温度 C. DNA完全解链时所需要的温度 D. DNA开始解链时所需要的温度 E. A280mm达到最大值的50%时的温度 参考答案:B
第32题: [单项选择]Passage Two Questions 29 to 31 are based on the passage you have just heard. A. It stands for hostility. B. It is not normal. C. It is an invasion of space. D. It means intimacy between two people. 参考答案:C 答案解析:[听力原文] Why is closeness disliked in some cultures