Danilo

　　Tagle

　　is

　　the

　　center's

　　Associate

　　Director.

　　He

　　says

　　a three­dimensional computer chip can be designed to act like a human lung.

　　Some computer chips contain very small models of the human digestive system. They copy the real function or duties of the human stomach and intestine (肠), moving when breaking down food.

　　Drugs are added to the tiny organs for testing through instruments known as micro­tubes.

　　Experiments with the tissue chips have produced more detailed information than tests using animal or cell models.

　　NCATS just announced $17 million in grants (拨款) to develop an entire human organ system over the next three years.

　　13．Why are scientists designing silicon computer chips acting like human organs?

　　A．To treat the patients whose body organs don't work well.

　　B．To examine the health condition of human organs.

　　C．To make testing new drugs faster and cheaper.

　　D．To further study the function of human organs.

　　14．What can we know about the silicon computer chip?

　　A．Its size is like a child's hand.

　　B．Cells in it can act like human organs.

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