为了让燃料燃烧更加充分，一般要考虑哪些因素．

小枫去印度旅游回来，在同学面前大谈他的印度见闻，下列叙述错误的是（    ）

下列各组式子中，为同类项的是（　　）

    This is my room. Near the window there is a desk. I often do my homework at it. You can see some books, some flowers in a vase, a ruler and a pen. On the wall near the desk there is a picture of a cat. There is a clock above the end of my bed. I usually put my football under my bed. Of course there is a chair in front of the desk. I sit there and I can see the trees and roads outside.

New words and expressions:

kitchen   厨房          cook 烹调，煮    bicycle   自行车         tape  磁带