中科新闻网剑芒狂天女主角几个:几道英语的题目！帮忙！谢谢
来源：百度文库 编辑：中科新闻网 时间：2024/05/06 17:17:57
1)Which of the following is TRUE?
A. LPG has the highest boiling point.
B. Crude oil is a mixture of carbon and hydrogen.
C. Naphtha can be cracked to other small hydrocarbons.
D. Fractions with darker colours condense at higher levels of the fractionating column.
2)Which of the followings CANNOT be stored by plastic bottle?
A. ethanol
B. kerosene
C. hydrochloric acid
D. sodium hydroxide
3)When we burn crude oil directly,which of the following is WRONG?
A. It uses up oxygen
B. It uses up carbon dioxide
C. It gives out sulphur dioxide
D. It gives out carbon particles
A. LPG has the highest boiling point.
B. Crude oil is a mixture of carbon and hydrogen.
C. Naphtha can be cracked to other small hydrocarbons.
D. Fractions with darker colours condense at higher levels of the fractionating column.
2)Which of the followings CANNOT be stored by plastic bottle?
A. ethanol
B. kerosene
C. hydrochloric acid
D. sodium hydroxide
3)When we burn crude oil directly,which of the following is WRONG?
A. It uses up oxygen
B. It uses up carbon dioxide
C. It gives out sulphur dioxide
D. It gives out carbon particles
A
B
C