如图是肺泡和血液之间的气体交换。据图回答下列问题。(1)肺泡壁和毛细血管壁很薄,这特点有利于____ 和____ 之间进行气体交换。(2)图中A表示的是____ (气体)进入血液的过程,B表示____ (气体)进入肺泡的过程。(3)血液流经肺泡周围的毛细血管后,血液中的含量增多的气体是____ ,含量减少的气体是____ 。
Would you like to learn English well?
4 weeks
Monday (18:30-20:00)
English Club
Phone NO.62258
Do you enjoy learning to use the computer?
3 weeks
Tuesday( 19:30-21:00)
Internet Club
Phone No.62279
Would you like to be an artist?
For drawing beginners only
8 weeks Thursday (19:00-20:30)
Art Club
Phone No.62537
Fancy taking photos?
Bring your camera with you!
6 weeks Saturday (9:00-10:30)
Photo Club
Phone No.62587
Are you good at swimming?
7 weeks
Sunday (100:00-11:30)
Swimming Club
Phone No.61852
Are you animal lovers?
5 weeks
Wednesday (14:00-15:30)
Nature Club
Phone No.61866
There are____clubs here for people to choose from.
People go to all these clubs____a week.
Only drawing____can go to Art Club.
____Club and____Club last for less than one month.
If you are free only in the afternoon, you can go to ____ Club.
People in Photo Club must bring a ____ with them.
If you like animals , you can call on ____
____ Club is the longest and ____Club is the second longest.
____是 ____的 ____倍.
列式: ____÷ ____= ____