“主变压器过负荷”信息属于（）告警信息。
A、事故信息
B、异常信息
C、越限信息
D、告知信息
参考答案：B
The famous writer and editor of the newspaper as well as many reporters _________ to the quake-hit
villages to cover the post-quake relief.[ ]
A. has been sent
B. have sent
C. has sent
D. have been sent
“45”号钢表示碳的质量分数的平均值为( )。
A．45%的沸腾钢
B．45%的镇静钢
C．0.45%的沸腾钢
D．0．45%的镇静钢
