• 2021-04-14
    A toothpick (牙签) is useful. Useful things are valuable. Therefore, a toothpick is valuable.
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      The books are ________, so I will throw them away. A: invaluable B: useful C: valuable D: useless

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      The books are __________, so I will throw them away. A: invaluable B: useful C: valuable D: valueless

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      CL images can yield valuable information not easily seen by other<br/>means. Therefore, CL images will play a useful petrographic role<br/>alongside BSE images and light microscope.() A: True B: False

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      The computer can give ______. A: all useful and useless information about the city B: valuable information about every resident in that city C: useful information about every street address in the city D: lively description about each building on fire

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      valuable.