题目

 Parents are ________ to be invited to this year’s New Year party.    A. possible                    B. probable                  C. like                         D. likely 答案：D 下列计算中，不正确的是 [　　] A．－3a＋2a＝－a B．(－2x2y)3＝－6x6y3 C．3ab2·(－2a)＝－6a2b2 D．(－5xy)2÷5x2y＝5y