1. (2022·四川模拟) 听材料，回答问题。

1. （1） Where can people find tea tree oil?

   A . On the surfaces of tea trees'leaves. B . In the cells of tea trees'leaves. C . In the cells of tea trees'roots.
3. （2） What disease can tea tree oil cure?

   A . Lung cancer and skin diseases. B . Bad breath and heart diseases. C . Bad breath and skin diseases.