题目内容

This is really something to be proud ().

A. out
B. at
C. of
D. in

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内因子的作用是：（）

A. 促进蛋白质吸收
B. 促进VitB12吸收
C. 促进Fe2+、Ca2+吸收
D. 促进脂肪吸收

胃液中与红细胞成熟有关的物质是：（）

A. 胃酸
B. 胃蛋白酶
C. 内因子
D. 粘液

She is living ( ) that some player just get better with age.

A. champion
B. heroine
C. proof
D. memory

Our teacher usually finishes( )each of her sentences by looking straight into one of the students' eyes.

A. up
B. down
C. in
D. with