何谓“法”？
参考答案：
将药物置沸水中浸煮短暂时间，取出，分离种皮的方法称为法。
—When did you buy the computer?
—I have ______ this computer for 5 years, but it still works well.[ ]
A. bought
B. have
C. had
实验对象应具备哪些基本条件？
