资本有机构成提高一般必备的（）资本在全部总资本中所占的比重增加。
A、C增加还是减少
B、V增加还是减少
参考答案：B
下列说法正确的有______（填序号）
①若|a|=a，则a＞0； ②若|a|=|b|，则a=±b； ③若|a|＞a，则a＜0； ④若|a|≥a，则a≤0
I hear people talk about “Wisdom of the printed page”. They wonder .
A．whether can the young afford to read books
B．where do the Chinese people like to read books
C．when the Chinese can realize the importance of reading
D．why do Chinese people spend lots of their time playing mobiles
