第11题: [单项选择]关于RMP面板,下列说法正确的是() A. RMP1主要负责对VHF1,HF1的调谐,RMP2主要负责对VHF2和HF2的调谐 B. RMP1主要负责对VHF1调谐,RMP2主要对VHF2调谐,RMP3主要负责对HF1,HF2,VHF3调谐 C. 当RMP1故障的时候,VHF1,HF1则失效,用VHF3,HF3代替其工作 D. 以上说法都对 参考答案:B
第29题: [单项选择]The news is mainly about ______. A. the moon is a big sand trap B. water may be plentiful in the interior of the moon C. collision made the moon so hot D. scientists can identify elements present in the moon 参考答案:B 答案解析:[解析] When astronaut Alan Shepard took his first swing at a golf ball on the moon, he hit mor