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【单选题】
建设资源节约型、环境友好型社会是() 1...... 2...... 3...... 4......A.
①②③
B.
②③④
C.
①③④
D.
①②③④
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举一反三
【单选题】Few airlines want to impose a total ban on their passengers using electronic devices because
A.
they don't believe there is such a danger as radio interference
B.
the harmful effect of electromagnetic interference is yet to be proved
C.
most passengers refuse to take a plane which bans the use of radio and cassette players
D.
they have other effective safety measures to fall back on
【简答题】A．All airlines have enforced a total ban on electronic devices during flights. B．Portable computers are confirmed as the greatest cause of aircraft crashes. C．It is difficult to predict how electromag...
【简答题】中国最大的湖泊是?
【单选题】The loss of ability in the mother tongue is mainly caused by the use of electronic devices and a lack of attention to culture.
A.
widespread
B.
visual
C.
ridiculous
D.
precious
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