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。()