上证基金指数和深证基金指数均是从交易所上市基金中选取部分基金作为样本进行编制的。()
参考答案:错
计算.(-2x2y3)2=______;(x-1)(3x-2)=______.
Parents try to _______ their children of their bad habits.
A.cure
B.treat
C.recover
D.heal