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单选题

A．They supplied an additional food source for gypsy moths.
B．They introduced gypsy moths to areas where there had been none.
C．They cleared oak trees from some areas where both animal species lived.
D．They manipulated the numbers of mice and oak's fruits in some areas.

参考答案D

解析:暂无解析

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单选题回答题
Section A
Directions: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear aquestion, you must choose the best answer from the four choices marked A, B, C and D. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.
Questions 1 to 4 are based on the conversation you have just heard.

A．Narrow down the topic of her article.
B．Read and revise her essay.
C．Provide some facts for her opinion.
D．Give her some advice on writing a paper.

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单选题

A．Keeping her topic focused and supporting her opinions with facts.
B．Reading extensively and collecting as much reference as possible.
C．Avoiding sensitive political points and seeking more power.
D．Having discussions with employees and giving them more freedom.

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单选题

A．By listing women's responses to different parties.
B．By discussing women's voting rights in democracies.
C．By quoting the percentage of women officers in governments.
D．By calling for women's voting rights in her own country.

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