• 2022-05-27
    Counting is different from number sense in that counting is ______.
    A: dependent on simpler mental activity
    B: a kind of ability possessed by man
    C: found in animals as well as man
    D: the ability to distinguish differences in small sets of objects
  • B

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      Which one is NOT man’s transformation of nature? A: Man has subdued and disciplined electricity. B: Man has transferred plants and animals to different climatic conditions. C: Man has changed the shape and climate of environment. D: Man has found a way to forecast the weather.

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      The timer T1 of 8051 single chip microcomputer is used as counting mode, and the counting pulse is. A: Input from T1 (p3.5) B: Provided by internal clock frequency C: Input from t0 (p3.4) D: Counting by external counting pulse

    • 2

      There are bubbles in the counting chamber. The result of cell counting compared with real cell density is ( ). A: large B: small C: unchanged D: uncertain

    • 3

      his father is a man of ________. A: able B: ability C: enable D: unable

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      A man who can "handle a teacup as well as a gun" has both () A: courage and manners B: strength and kindness C: wisdom and energy D: ability and humor