单项选择题

The text is mainly about ______.

A．the search for effective cancer treatment drugs
B．the goals of cancer therapy
C．the success in reading genes
D．the advances in cancer treatment
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单项选择题
According to the article, the video game player can ______.
A．be successful in his life if success is clearly defined
B．control the world of our own for a time
C．forget about the uneasiness of real life for a while
D．never lose the game when he plays a hero
单项选择题
Sarada and her team are convinced that ______.
A．research on genes offers them greater predictive power
B．lung cancer is caused by variation of genes
C．patients can survive lung cancer by altering their genes
D．chemotherapy can save even the worst lung cancer patients
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