在如右图所示的电路中，当滑动变阻器的滑动头向上滑动时，A、B两灯亮度的变化情况为 （ ）A．A灯和B灯都变亮B．A灯和B灯都变暗C．A灯变亮，B
They often paly _______ on the badminton court.A．badmintonB．basketballC．footballD．volleyball
如图7，点D、E、F分别在AB、BC、AC上，且DE// AC, EF// AB ,下面写出了证明 “”的部分过程，请完成填空： DE// AC, EF // AB, ( ) .(
--Is there any possibility of the film ___________ in Paris International Festival? --Not in the least, because the audience generally think little of it. A. trying out B. tried out C. t
_______ how to do the homework, I went to ask my teacher for help. A. Not to know B. Not knowing C. Knowing not D. Not known
The world is divided into two main parts. The difference is ___41___one part is rich and the other is poor. In the poor part, a lot of people ___42_____get enough to eat. In the rich part, a lot of
One afternoon I was sitting at my favorite table in a restaurant, waiting for the food I had ordered to arrive. Suddenly I ___36___ that a man sitting at a table near the window kept glancing in my di
下列有关物质分类的说法，不正确的是（ ） A．CO2、SO2是非金属氧化物，也是酸性氧化，它们属于电解质 B．KNO3是钾盐、硝酸盐、也是正盐 C．H2SO4是
