1. There are two basic models in exception handling theory. 在异常处理理论中有两个基本的模型。
2. Practice 1 Open the last project you created, and add exception handling to your code. 练习1。打开你最后建立的项目，并在你的代码中添加异常处理。
3. Where alternative sources of power are available there are some marked contrasts in handling. 凡是能源有选择余地的地方，在处理方面有些显著的差别。
英英解释
n.
1. manual (or mechanical) carrying or moving or delivering or working with something
2. the action of touching with the hands (or the skillful use of the hands) or by the use of mechanical
3. the management of someone or something
