单项选择题

A．Businessmen, managers and accountants.
B．Chemists, physicists and biologists.
C．Governors, doctors and teachers.
D．Engineers, public servants and news reporters.
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单项选择题
The information put on personal Blogs can be browsed by unfamiliar net users.
A．Y
B．N
C．NG
单项选择题
The third paragraph emphasizes________.
A．about 90% of sugar used as food
B．only 10% used in industry
C．sugar used for making plastics
D．future uses of sugar
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