若张先生不换屋，张太太也不兼职，但把10万元存款中的5万元拿来重新装潢，另外5万元准备8年后的子女10万元的高等教育金。若股票的平均报酬率为10%，债券为4%，子女教育基金目标投资合理的资产配置为()。
A. 股票30%，债券70%
B. 股票50%，债券50%
C. 股票70%，债券30%
D. 股票85%，债券15%
（）The main idea of the third paragraph is that．
A. the mass of the fishDecides the intensity of electric power it generates
B. the strength of shock givenBy a young electric ray can only light theBulb of apocket flashlight
C. to make full use of the energy producedBy electric fish，suitable wires shouldBeavailable
D. a mature torpedo is capable of producing enough electricity to knockDown a man
微信支付 
支付宝支付