单项选择题

According to the UN report, the least developed country is

A．Ethiopia.
B．Mali.
C．Sierra Leon.
D．Central African Republic.
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单项选择题
This article aims to
A． emphasize the importance of a magazine’’s design.
B． introduce the magazine’’s art director.
C． persuade the reader to subscribe to the magazine.
D． inform the reader of its new design and features.
单项选择题
The main purpose of the passage is to_______.
A．offer advice on how to prevent hip fractures.
B．emphasize the importance of health precautions.
C．discuss the seriousness of hip fractures.
D．identify the causes of hip fractures.
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