单项选择 适中0.65 引用1 组卷273
_____ organs have been applied to heart or kidney transplant operations these years.
A.Potential | B.Artificial | C.Superficial ` | D.Commercial |
20-21高二下·天津·期末
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This product uses natural substances and contains no __________ colors.
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A.artificial | B.foolish | C.universal | D.amazing |
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