• 2022-06-05
    Both nickel and iron are whitish metals ____.
    A: that are attracted by magnets
    B: that magnets are attracted by them
    C: are attracted by magnets
    D: magnets that attract them
  • A

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      According to ancient records, natural magnets were employed in China as direction-finding devices. This led to the first compass, called ( ) during the Warring States Period.

    • 1

      —How was the televised debate last night? —Super! Rarely ______ so much media attention. A: a debate attracted B: did a debate attract C: a debate did attract D: attracted a debate

    • 2

      The frequency of an alternator at a given r/min is determined by the _______ . A.number of turns of wire in the armature coil B.number of magnetic poles C.strength of the magnets used D.output voltage

    • 3

      If the foreign visitors stay abroad and have to seriously deal with real conditions of life, most of them are attracted by the new.

    • 4

      Nicolas was completely ______ by the computer games. A: attracting B: attract C: attracted D: attraction