对装运放射性同位素的专用车辆、设备、搬运工具、防护用品等,应定期进行放射性污染程度的检查,超量时不得继续使用。
参考答案:对
Out _____, with an apple in his hand.
A.rushed the boy
B.did the boy rushed
C.the boy rushed
D.the boy did rush
为何要对分馏塔底液面控制?