单项选择题

Question 27 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, listen to the news.

A．4.
B．5.
C．6.
D．7.
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单项选择题
What is the speaker’s field of study
A．Social work.
B．Medical care.
C．Applied physics.
D．Special education.
单项选择题
What is the topic of this passage
A．Insects that feed on plants.
B．Animals that feed on insects.
C．Plants that use insects to survive.
D．Insects that are attractive to plants.
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