我国城乡居民的消费结构发生根本变化的根本原因是 [ ] A、社会经济发展，居民收
题型：选择题
问题：
我国城乡居民的消费结构发生根本变化的根本原因是 [ ]
A、社会经济发展，居民收入增加
B、居民消费观念发生的根本变化
C、国家实施鼓励消费的政策
D、物价水平持续下跌
题型：选择题
| 完形填空。 | |||
| How 3D Movies Work Do you know 3D movies? When you see one, it's like the story __1__ in front of you, and you are a part of it. 3D movies are exciting to __2__ , but do you know how __3__ them, and __4__ you need to wear a pair of 3D glasses? To understand these questions, let's make an easy __5__ Put a finger 6 your eyes. Cover your left eye and look at the finger. Cover your right eye and look at the finger.  What do you see? The finger you see with your left eye is in a different position from the one you see with your right eye. This means you get two images (图像) when you look at __7__ with both your eyes. To make a 3D movie, people have to get two images at the same time, __8__ they use two video cameras. When playing a 3D movie, they use two projectors (放映机) at the time. This brings two images together on the screen. Then, we use 3D glasses to separate (识别) the two images. One image enters one eye and __9__ enters the other eye. Then our brains __10__ the two images together. In this way, we get 3D pictures. | |||
| ( ) 1. A. happen ( ) 2. A. watch ( ) 3. A.make ( ) 4. A. when ( ) 5. A. example ( ) 6. A. in front of ( ) 7. A. everything ( ) 8. A. because ( ) 9. A. other ( ) 10. A. let | B. happened B. see B. to make B. why B. picture B. in the front of B. anything B. so B. the other B. put | C. to happen C. look C. making C. which C. experiment C. behind C. something C. and C. others C. take | D. happening D. notice D. made D. what D. movie D. beside D. nothing D. but D. the others D. bring |