目前世界潮流方向是使每分钟进入真空槽的钢水量达到钢水总量的（）％以上提高环流速度。
A.50
B.75
C.100
D.120
参考答案：B
在写小数时，要先写（ ）部分，如果整数部分是零，就直接写0；再在个位的右下角点上（ ）；最后写出（ ）部分每一位上的数字。
Many teenagers in China are accustomed to ______ after, ______ for granted everything their parents do.
A．being looked; taking
B．looked; taking
C．being looked; took
D．looking; taking
