题目内容：
回答第30题。
A．high B．low
C．expensive
D．cheap
参考答案：
答案解析：
单选题：回答第30题。
- 题目分类：中级
- 题目类型：单选题
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B．low
C．expensive
D．cheap
B．low
C．expensive
D．cheap
31题答案为
31题答案为A．rocks B．cliffs C．roads D．paths
27题答案为
27题答案为A．unless B．if C．as D．since
20题答案为
20题答案为A．stable B．splendid C．smooth D．complicated
回答题A B C D F G H Although Internet sales started higher tha
回答题ABCDFGHAlthough Internet sales started higher than High Street sales, they l
It can be inferred from the passage that e-mail phones are
It can be inferred from the passage that e-mail phones are designed toA．make tr