题目内容

He said in his letter that he would _______ some photographs but I couldn’t find anything in the envelope.

A. case
B. double
C. enclose
D. nonsense

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Many English words are _______ from Latin.

A. displayed
B. spread
C. lost
D. derived

I feel _______ to say that I can not believe what he said.

A. wanted
B. observed
C. obliged
D. wandered

人类嘌呤核苷酸分解的终产物是

A. 尿素
B. 尿酸
C. 肌酸
D. 肌酐
E. NH3和CO2

临床上常用哪种药物治疗痛风症？

A. 5-氟尿嘧啶
B. 6-巯基嘌呤
C. 氨甲蝶呤
D. 氨基蝶呤
E. 别嘌呤醇