(2013·豫北三校聯(lián)考)Friendship is both ________ source of pleasure and ________ component of good health.
A．a(chǎn); aB．/; /C．the; aD．a(chǎn); the
A
A　句意：友誼既是快樂的一個源泉，也是健康的一個組成部分。兩個空都用不定冠詞。
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