阅读理解。
Here is a part of an E-mail answer from Joe giving some advice to his son in college. When I was
young, I often met troubles about what to do and what not to do. My grandmother told me not to worry
about those things. I only did once a year or once a lifetime. Instead, I should try to do those things well,
and I do them every day. For example, I need to eat every day, so I should learn how to cook. I need to
talk to others every day, so I should learn how to work with different people and how to speak well. I
walk every day, so my shoes should be all right and comfortable. Every night I sleep, so my bed should
let me have a good rest. Taking care of the everyday things means that you do a better job of the
one-in-a-lifetime things as well.
根据短文内容，回答下列问题。
l. Who receives this part of E-mail?
_______________________________________________________________________________
2. What advice did the E-mail give?
_______________________________________________________________________________
3. What trouble do you think the young man met?
_______________________________________________________________________________
4. What kind of father do you think Joe is?
_______________________________________________________________________________
面纵向隐裂且累及牙髓，临床牙冠较短，咬合紧，根管治疗已完成。该病例的最适修复体设计是（）