使用粘单的票据，粘单上的第一记载人必须在票据和粘单的粘接处签章，粘单处签章与背书签章

用恰当的词语填空，完成对话。每空一词。（每小题1分，共5分）

A: Hi, Li Ping. Why do you look upset?

B: I ___小题1:____ my English exam again. Could you give me some advice on how to learn English?

A: Sure. What’s your biggest problem ___小题2:______ learning English?

B: I can’t remember the words.

A: Well… I always copy words on cards and put them in my pockets. When I have time, I Always take them out and _____小题3:____ them aloud.

B: Sounds great. I will try it. By the way, I want to__小题4:______ my listening skill.

A: I think the best way is to do lots of listening practice, such as listening to the tapes,

____小题5:______ TV programs and seeing English movies.

B: Oh, I see. Thanks a lot.

溃疡性结肠炎（）.

A.CEA

B.p-ANCA

C.c-ANCA

D.ASCA

从光合作用的反应原理6CO₂+6H₂OC₆H₁₂O₆+6O₂可知碳是农作物生长的必需元素之一。关于用二氧化碳生产肥料的评价正确的是[ ]

A．缓解地球温室效应，抑制农作物营养平衡

B．加剧地球温室效应，促进农作物营养平衡

C．缓解地球温室效应，促进农作物营养平衡

D．加剧地球温室效应，抑制农作物营养平衡

20＋19－18－17＋16＋15－14－13＋12＋11＋4＋3－2－1＝（ ）。

A．10

B．15

C．19

D．20