选择题：What’S the main idea of the passage7

题目内容：

What’S the main idea of the passage7

A．Laser light treatment of heart disease should take the place of the traditional operatlon．

B．Laser light treatment has been proved better and more effective than the traditional operation．

C．More advanced technology should be encouraged to try on．

D．Laser light treatment of heart disease still needs’more research．

参考答案：

请将正确答案填在第35处

请将正确答案填在第35处A．shareB．seizeC．decreaseD．increase

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