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Conditions for the growth of this plant are optimum in early summer.
A．most desirable
B．most favorite
C．most expressive
D．most acceptable

A.
A．most
B.most
C.most
D.most

【参考答案】

D
划线单词optimum的意思是“最适宜的”。mostdesirable“最需要的”，mostfavorite......

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