缴存住房公积金的工资基数，不包括( )。
A．计时工资和计件工资 B．住房公积金月缴存额C．加班加点工资 D．奖金、津贴和补贴
参考答案：B
已知方程2x2+kx-10=0的一个根是-2，求它的另一根及k的值．
He is a student at Oxford University,_______ for a degree in computer science.
A．studied
B．studying
C．to have studied
D．to be studying
