一台电冰箱的原价是2400元，现在按七折出售，求现价多少元？列式是（ ）
A：2400÷70%
B：2400×70%
C：2400×（1﹣70%）
D：2400×7
看图写话。
Channel(频道)
Time
Name show
Kind of show
ATV
7:00
News
8:30
Good Friend Contest
Game Show
9:20
Chinese Mother
Documentary Special
12:00
Man From the Star
Soap Opera
BTV
7:40
China Sports
Sports Show
Happy Family
Sitcom
10:40
Face To Face
Talk Show
CTV
9:30
China Music
Music
13:40
Romantic Dream
Fashion Show
22:40
Football Magazine
下列工具或仪器中属于省力杠杆的是 ( )
