题目内容

西门塔尔牛的产肉性能优于黑白花奶牛。()

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产蛋鸡能量需要,通常2/3用于维持,1/3用于产蛋,并且首先满足维持的营养需要,然后才用于产蛋。()

The man wants to have _____ in the apartment.

A. a swimming pool
B. a washing machine
C. a balcony
D. a central air conditioning

_____sagree on whether the cheerleaders are entertaining or just an irritating thstraction.

A. Spectators
B. Athletes
C. Fans
D. Cheerleader choreographers

国外品种猪因为其屠宰率高、肉脂品质好和生长速度快被我国养猪业广泛引入。()

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