是指油在加热蒸发后接触火焰而产生短促闪火时的最低温度，是安全性能指标。
A、燃点
B、闪点
C、凝固点
D、化学安定性
参考答案：B
The Food and Drug Administration that anyone who too much the drug
suffer side effects.
A．warned; took; will
B．has warned ;takes; may
C．warns; took; must
D．has warned; will take; need
注意力缺陷多动症的主要症状是
A．注意力缺陷，活动过度B．注意力缺陷，神经系统障碍C．神经发育障碍，智力偏低D．语言发育障碍，活动过度E．神经发育障碍，语言发育障碍
