多数食物蛋白质含氮量为（）。
A.12％
B.16％
C.18％
D.26％
参考答案：B
They _____ on the little professor, but it led to his fierce criticism on us. [ ]
A. played a joke
B. made fun
C. had fun
D. performed a joke
企业发生的公益性捐增支出，不超过年度会计利润总额( )的部分，准予扣除。
A．14%B．12%C．15%D．2.5%
