高炉内直接还原温度开始在()
A、800—1000℃
B、高于1100℃
C、高于570℃
D、高于1500℃
参考答案:A
□ABCD中,AB=2,BC=3,则□ABCD的周长是
I don't quite _______ what you said at the meeting. [ ]
A. miss
B. hear
C. have
D. understand