一It's on June 20th.
A:What day is it today?
B:What's the weather like today?
C:When is your birthday?
如图所示,闭合开关,当滑动变阻器的滑片向左滑动时,下列判断正确的是( )
如果用总长为60m的篱笆围成一个长方形场地,设长方形的面积为S(m2),周长为p(m),一边长为a(m),那么S,p,a中是变量的是( )
选词填空。
做 讲 扫 洗 爱 听
____院子 ____故事 ____衣服
____父母 ____家务 ____电话
一个数的最高位是千亿位,它是____位数.