单项选择题

Why do dolphins attach each other head-to-head

A．They are making fun of each other.
B．They are doing exercise.
C．They are trying to damage the hearing system of their opponents.
D．They are gang raping.

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热门试题

单项选择题

Which of the following is not emphasized by contemporary American society

A．Physical.
B．Biological sciences.
C．Engineering.
D．Art.

问答题

Write an essay about 300 words entitled Travel . In the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion or a summary. Marks will be awarded for content, organization, grammar and appropriacy.