28. This factory bought a labor-saving ______ to cut down the burden on its workers.
(A) device
(B) virus
(C) task
(D) logo
詳解 (共 3 筆)
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28. This factory bou...
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This factory bought ...
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to cut down the burd...
私人筆記 (共 2 筆)
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28. 這家工廠買了一個省力的_____...
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virus 病毒 bacterial ...