对于公民的作品，著作财产权的保护期限是作者的终生加上其死亡后多少年？
参考答案：
50年
呼吸呈蒜味的毒物是（）
A.阿托品
B.地西泮
C.酒精
D.有机磷农药
E.亚硝酸盐
We had just covered a distance of three miles _____ the engine of the car _____.[ ]
A. then; was broken
B. when; broke down
C. until; was failed
D. since; burst out
