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I am interested your latest products.

A. at
B. for
C. in
D. to

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I’m glad to have the opportunitythe meeting.

A. attends
B. to attend
C. attending
D. attend

Please inform the managersthe meeting.

A. for
B. in
C. to
D. of

参与肝脏初级结合胆汁酸生成的氨基酸是_______

A. 组氨酸
B. 丙氨酸
C. 甲硫氨酸
D. 亮氨酸
E. 甘氨酸

胆固醇在体内代谢后,主要是______

A. 转变成胆固醇酯
B. 转变为维生素D
C. 合成胆汁酸
D. 合成类固醇激素