问题
选择题
在如图所示电路中，电源电压保持不变，闭合开关后滑动变阻器的滑片P向下滑动时，电压表与电流表的示数U与I将
A、 U减小，I增大
B、 U减小，I减小
C、 U增大，I减小
D、 U增大，I增大
答案
答案：C
搜题请搜索小程序“爱下问搜题”
在如图所示电路中，电源电压保持不变，闭合开关后滑动变阻器的滑片P向下滑动时，电压表与电流表的示数U与I将
A、 U减小，I增大
B、 U减小，I减小
C、 U增大，I减小
D、 U增大，I增大
答案：C
| 完形填空。 | |||
| "How can I learn English well?" "This is a 1_many students may ask. In my opinion, the most effective(有效的) 2 is to learn lessons by heart. If you can recite the text and write it out, you will learn it pretty well. And if you can tell 3_ur own words about 4_e lesson says, you are a very successful learner indeed. Your English will be quite perfect. This is a difficult task. However, if you try to learn by heart only part of each lesson, you'll find it not so hard 5_u might have thought. Learn this way, and you will 6_ast progress. Of course, writing is also necessary. It helps you a lot on your way to 7 in English studies. It's equally (同样地) important to feel the language. You should laugh at Englsih jokes and be 8_at bad news. When using English, try to 9_our mother tongue(母语). 10_helping you, your own language gets in your way. So, never try to learn English through putting every word into Chinese. | |||
| ( ) 1. A. problem ( ) 2. A. time ( ) 3. A. with ( ) 4. A. which ( ) 5. A. than ( ) 6. A. do ( ) 7. A. success ( ) 8. A. happy ( ) 9. A. leave ( ) 10. A. Instead of | B. puzzle B. way B. by B. what B. like B. make B. challenge B. happily B. forget B. Instead | C. question C. road C. of C. how C. so C. learn C. difference C. sad C. remember C. Besides | D. challenge D. place D. in D. when D. as D. develop D. importance D. sadly D. realize D. Except for |