油罐收油完毕稳定后，对油品必须进行计量。收甲、乙、丙A类油品的立式罐稳油时间为（）min，卧式罐为（）min。
参考答案：30、15
用括号内单词的适当形式填空。
1. I think this one is the _____ (good) of the two watches.
2. Shanghai is one of _____ (big) cities in the world.
3. Don't you think this garden is not as _____ (beautiful )as that one?
4. I'm fifteen, and my cousin is thirteen. So I'm two years _____ (old) than him.
5. Compared with money, health is _____ (important).
关于中枢化学感受器的正确说法是（）
A.与延髓呼吸中枢紧密合作
B.其生理刺激是脑脊液和局部细胞外液中的H+浓度
C.血液中pH对中枢化学感受器的作用比CO2强
D.对低氧刺激敏感
E.对CO2敏感性比外周化学感受器低
