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Lesson 11 Blank-filling-8Mayday mayday mayday smoke was 1 in the 2 , 3 has been discharged, we'd like to 4 to Shengzhen for landing, please advise them we need 5 on landing.

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Lesson 11 Blank-filling-9We have been 1 , the 2 wants us to land at XX but we don't have that 3 , request landing at YY for 4

Lesson 11 Blank-filling-10Panpan panpan panpan CCA982, we've run into 1 , 2 and passengers injured, request divert to Hefei which is the 3 to us for landing, please advise them we need 4 and 5

1970年-1980年是计算机辅助教育的什么阶段?

A. 研究试验阶段
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C. 综合运用阶段

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B. 计算机辅助教学
C. 计算机管理教学
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