Nowadays universities usually hold exams in the class， and recently some universities allow students to take exams at home. Talk about its advantages or disadvantages. Give specific reasons to support your answer.
Some people prefer talking about their opinion immediately when they get the topic， while others prefer to wait and listen to others before they talk about their own opinion. Which one do you prefer and why ？
标题：The university is planning to provide food delivery service.
改变：Students can delivery food to dormitory or other places.
观点：The man totally agrees with this plan.
原因1：Sometimes student are busy preparing for exams and doing studies， so they have no time to eat in cafeteria， and this service can provide them with convenience.
原因2：Student can get more opportunities to take part-time jobs at night since they have many classes during the day.
定义：Some animals live in groups， and every member in a group has its own role. For example， the young ones need to study and the old ones need to find foods. In some cases， the old animals prevent the young ones from doing things that should be done by old ones.
例子：The professor takes honeybees as an example. The young bees have to stay in a hive and the old bees come out to find food. In order to prevent young bees coming out， old bees may produce a kind of chemical material， and young bees respond to this material by staying in the hive. When more old bees die， the amount of chemical material will decrease， so young bees come out of the hive to find food just like the old bees did.
问题：The man is going to attend a career fair， but at the same time he needs to attendhistory class and take the midterm exam.
解决方案1：The professor will give the man a paper which he needs to finish in a week.
优点：He can attend the career fair.
缺点：Compared to preparing the midterm exam， he needs to spend more time on the paper.
解决方案2：To take the mid term exam.
缺点：He can still go to the career fair， but it may come to the end， so he won’t have enough time to talk with hiring managers of every company.
标题：Two disadvantages of licensing
概念：In order to gain more profits，some companies make and sell products in other country.
要点1：It’s hard to control the quality of the products.
例子1：A shoes company allows the other company to make shoes in other country. But the foreign company uses cheap material and the shoes fall apart. So the reputation of the home company will be damaged.
要点2：Foreign company will compete with the home company.
例子2：A cellphone company uses a new technology on its products， and allows a foreign company to help sell products. Then the foreign company learns about the new technology and produce their own products.