◎ 题干
The rates (费用) at an Internet bar are as follows:
First 30 minutes $3.00       
Every additional (增加的) 15 minutes $2.00
How much does Ginny have to pay if she was on-line for 50 minutes?

A. $5
B. $7
C. $9
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The rates (费用) at an Internet bar are as follows: First 30 minutes$3.00 Every additional (增加的) 15 minutes $2.00 How much does Ginny have to pay if she was…”主要考查了你对  【基数词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。