A:液氮用作制冷剂
B:镁粉用作照明弹
C:生石灰用作干燥剂
D:碘酒用作消毒剂
A. Red is my favourite colour.
B. What time does the party begin?
C. That sounds interesting.
D. It's on 5th January.
E. Can you come to my birthday party, Linda?
Peter: ____
Linda: Sure. When's your birthday?
Linda: ____
Peter: It begins at half past six in the evening.
Linda: OK.
Peter: Please bring some red things to the party. It's a "red party". ____Linda: A “red party”? ____ I can't wait.
下面名言能体现教师无私奉献精神的是( )
化简: 83 ═____.