题目内容：
It is understood by fishermen that dolphins are their friends_________________dolphins are their friends.
参考答案：
选择题：It is understood by fishermen that dolphins are th
- 题目分类：国家开放大学-开放英语4
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dolphins are their friends.
dolphins are their friends.
以防御为核心是（ ）的竞争策略。选择一项：A.
以防御为核心是（ ）的竞争策略。选择一项：A.市场挑战者B.市场领先者C.市场跟随者D.市场补缺者
If the government does not ban traffic in the cent
If the government does not ban traffic in the centre of the city, congestion wil
购买者在购买产品时所获得的全部附加服务和利益也属于产品概念的一部分。（ ）选择一项：对错
购买者在购买产品时所获得的全部附加服务和利益也属于产品概念的一部分。（ ）选择一项：对错
The government is spending ____ on railways.
The government is spending ____ on railways.选择一项：a.millions of dollarsb.million
This computer is very old. It needs replacing.
This computer is very old. It needs replacing.This computer is very old. It need