A good diet and some moderate exercise are ____ to good health.
A．a(chǎn)dventurousB．a(chǎn)pproximateC．fundamentalD．balanced
C

試題分析：考查形容詞。A冒險(xiǎn)的；B大約的；C基礎(chǔ)的，根本的；D平衡的。be fundamental to是……的基礎(chǔ)。句意：好的飲食和適度的鍛煉是健康的基礎(chǔ)。根據(jù)句意說明C正確。
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