如图所示，一端开口，一端封闭的玻璃管，封闭端有一定质量的气体，开口端浸入固定在地面上的水银槽中，用弹簧测力计拉着玻璃试管，此时管内外水银面高度差为l1，弹簧测力计示数为F1．若吸走槽中的部分水银，待稳定后管内外水银面高度差为h2，弹簧测力计示数为F2，则（ ）
A．h2＞h1，F2=F1 B．h2＜h1，F2=F1 C．h2＜h1，F2＞F1 D．h2＞h1，F2＞F1 |
答案：D
| 在B栏中找出A栏英语句子的正确答语。 |
| (A) ( )1. Do you walk to school? ( )2. How do you go to school? ( )3. Does your father drives to work? ( )4. Where does your uncle work? ( )5. Do you go to school by car? | (B) A. Yes. He has a car. B. He works in a store. C. No. I ride my bicycle. D. Yes. I live near school. E. By bus. |
