Animals are obviously lower form of life than man. A. the;theB. a;/C. a;theD. /;/

Animals are obviously lower form of life than man.
A. the;the
B. a;/
C. a;the
D. /;/

A. the;the(答案→)B. a;/C. a;theD. /;/解析：句意：很明显，动物和人类比起来是更低的生命形式。第一空填a，泛指“一种更低的生命形式”，第二空不填，泛指“人类”，所以选B。

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