问题
单项选择题
依据规划，北斗系统完全建成后，静止轨道卫星的数量为（）颗。
A.2
B.5
C.10
D.27
答案
参考答案：B
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依据规划，北斗系统完全建成后，静止轨道卫星的数量为（）颗。
A.2
B.5
C.10
D.27
参考答案：B
| 阅读理解。 | |
The bird is in the tree in the yard (院子). The bird comes to my window. I open my window. The bird goes to the tree. I put some bread outside (在……外面) my window. I tell the bird, " Look! It's yummy (美味的) bread." The bird comes again (又，再). | |
| 1. Where is the bird? | |
[ ] | |
| A. It's in the restaurant. B. It's in the tree. C. It's in the room. | |
| 2. I open my ____________. | |
[ ] | |
| A. bag B. pencil-box C. window | |
| 3. What do I put outside the window? | |
[ ] | |
| A. Bread. B. Beans. C. Soup. | |
| 4. The bread is _____________. | |
[ ] | |
| A. bad B. yummy C. hot |