根据第四段第一句话“Several forms of the 747 have been produced since 1970(自1970年以来,波音747已经生产了几种型号)可知第四段”主要讲了波音747自1970以来的发展历史,B选项波音747的发展,符合题意。A.波音747最近的形态,C.波音747在在航空运输中的重要性,D.客机与运输货物的飞机的不同。答案为B。15....
根据第四段第一句话“Several forms of the 747 have been produced since 1970(自1970年以来,波音747已经生产了几种型号)可知第四段”主要讲了波音747自1970以来的发展历史,B选项波音747的发展,符合题意。A.波音747最近的形态,C.波音747在在航空运输中的重要性,D.客机与运输货物的飞机的不同。答案为B。15....
This most recognized passenger airliner of all time, the Boeing 747 has consistently set new standards since its introduction in 1970. During this period the wide tange of developments and vaiants has seen frieghter, combined freight/passenger, long-range, increased capacity, and military versions....
Like Boeing 747-400 (4K-SW888) 提交时间:8 年以前 34of 4K-SW88835758ofB7441970atLMML Gordon Zammit Comments 日期机型始发地目的地出发到达飞行时间 2025年 03月 20日B744Heydar Aliyev Int'l(GYD / UBBB)02:46+04在途中 2025年 03月 19日B744Ben Gurion Int'l(TLV / LLBG)Heydar Aliyev Int...
C The plane Boeing 747 was a big change in air travel. Introduced in 1970, it could carry almost three times more people than any other plane of the time.The number of people using air travel increased during the 1960s. People started traveling more often and making longer journeys. Cars...
难度:正确率:The plane Boeing 747 was a big change in air travel. Introduced in 1970, it could carry almost three times more people than any other planes of the time.The number of people using air travel increased during the 1960s.People started traveling more often and making longer journey...
This site is all about the Boeing 747 from the early history of the 747-100 to the current 747-8i and the experimental planes.
First flown commercially in 1970, the 747 held the passenger capacity record for 37 years.[9] The 747-300 features a 23-foot-4-inch-longer (7.11 m) upper deck than the -200.[85] The stretched upper deck has two emergency exit doors and is the most visible difference between the -300...
1970年代,波音747成为了第一架服役的宽体客机[5],机舱内部空间足以容纳两行通道[6]。两年后,波音公司开始了新的研发计划——代号“7X7”的一种新式宽体客机,意在取代波音707及其他窄体客机[7][8]。这种飞机具有双行通道,但是机身长度要短于当时的波音747、麦道DC-10和洛克西德L-1011等客机[7]。为了支付高额的...