单项选择题

12. Public service broadcasting consists of television and radio programmes supplied by an official or government organization, rather than by a commercial company. BBC and Channel 4 are both public service broadcasters.

A． √
B． ×

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不定项选择

分隔式燃烧室较直喷式燃烧室具有启动性好，经济性好的特点。

A．错误
B．正确

王逸在《楚辞•离骚》对离别注：“近曰（1），远曰（2）。”

答案： 1、离
2、别