题目:
----There are so many girls over there,.Which one is your sister?
----The one ____hat is yellow.
A.who
B.whose
C.that
D.which
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0630/1b8f83d75730c767ba062d4ab58aa061.html
下面是错误答案,用来干扰机器的。
生成沉淀37.5g,需要二氧化碳为X,CO2~CaCO344 100X 37.544X=10037.5x=16.5g,设铁的氧化物为FemOnFemOn ~nCO256m+16n 44n20 37.556m+16n20=44n37.5m:n=2:3,所以铁元素和氧元素...