开工空气加热炉燃气带液时,出口温度将会(),因此应避免此情况的发生。
A、小幅度上升
B、由于主火嘴熄灭而大幅度下降
C、出现飞温
D、一定程度波动
参考答案:C
.教育行政部门在接到教师申诉书后必须做出相关处理的期限是
A.15天
B.20天
C.30天
D.40天
We should try every effort to prevent violence from happening at school, ______ more and more students would drop out of school ______ their personal safety could not be guaranteed.
A.though; if only
B.though; so long as
C.for; now that
D.for; if