制约我国西北地区农业生产发展的最重要条件是（）

权力是把“双刃剑”，更是一匹烈马，驾驭得好，权力就会成为“千里马”；驾驭得不好，权力就会成为“害群之马”。要让权力成为“千里马”，针对这个问题就需要（     ）

   This is my beautiful home. There is a small garden in front of my house. There are many beautiful flowers in the garden. Behind my house there is a big tree. Near the tree, you can see a garage. My father’s beautiful car is in it now.
   On the first floor, there is a large living room, a dining room, a kitchen and a bathroom. I like watching TV in the living room. On the second floor, there is a small study room and two bedrooms. I love playing with the computer in my study. 
   What a nice home! I like it very much.

名著阅读，按要求完成①②两小题。