“香港、澳门在不断扩大。”这句话主要说明的现象是( )
A:不断建造高层楼房
B:节约用地
C:填海造陆
D:珠江三角洲不断增大
如图所示,当带正电的绝缘空腔导体A的内部通过导线与验电器的小球B连接时,问验电器是否带电?
I'm going to with my grandparents this weekend. ( )
Name
Favorite subject
Why
When
Ken
PE
Fun
Friday
Selina
Geography
Interesting
Monday
Alice
Music
relaxing
Tuesday and Thursday