单项选择题

Which of the following can best served as the title of the passage

A．The Cause of Air Pollution.
B．The Issue of Air Pollution.
C．The Types of Air Pollution.
D．The Prevention of Air Pollution.
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单项选择题
Air pollution refers to the presence of all the following EXCEPT______.
A．harmful solids
B．harmful gases
C．harmful liquids
D．harmful chemicals
单项选择题
James Joyce's novels_______.
A．followed the traditional way of novel writing
B．flared back at the conventions of the novel form
C．jeered at the conventions of the novel before him
D．accepted the conventions of the novel form prior to him
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