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【单选题】
下面关于黄体酮的哪一项叙述是错误的(C)A.
化学名为孕甾-4-烯-3,20-二酮,又名孕酮,助孕素
B.
本品在空气中稳定,但对光和碱敏感
C.
本品17位具有甲基酮结构,可与高铁离子络合
D.
黄体酮与羰基试剂的盐酸羟胺反应生成二肟,与异烟肼反应生成黄色的异烟腙化合物
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【单选题】Many things can ______ the earth, for example, car fumes and garbage.
A.
recycles
B.
produce
C.
harm
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