题目内容

Stamps are used for ______ letters.

A. [A] sending
B. [B] writing
C. [C] carrying

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Could you ______ me a hand when you have finished your work

A. [A] borrow
B. [B] call
C. [C] lend

某地防疫站1985年疫情资料统计共发生狂犬病60例，且全部死亡，根据此资料

A. 可以计算狂犬病死亡率
B. 可以计算狂犬病死亡专率
C. 可以计算狂犬病病死率
D. 可以计算狂犬病标化死亡率
E. 资料不全，不能计算率

—What are you doing —I'm ______ the piano.

A. [A] exercising
B. [B] practising
C. [C] training

I liked the trip ______ I found it to be a wonderful experience.

A. [A] though
B. [B] which
C. [C] because