在比例尺为1：50000的地图上量得甲、乙两地的距离为10cm，则甲、乙两地的实际距离是（ ）
A：500km
B：50km
C：5km
D：0.5km
Twenty students want to attend the class that aims to teach to read first.
根据材料内容，选择正确答案。
There are 50 students in Class 8. Now they are doing a survey about how they spend their pocket money. Some spend it on books, and others spend it on visiting. What about you? Please read the form and answer the questions.
10%
55%
12%
13%
Buy some CDs and computer games.
Buy some snacks and drinks.
Buy some books in the bookshop.
Save it up and spend it traveling on holiday.
Buy some gifts for friends.
