【多选题】关于模式与实例的描述正确的是:
C.
模式反映的是数据的结构及其联系,实例反映的是数据库某一时刻的状态
【多选题】“Nature does not hurry, yet everything is accomplished” — Lao Tzu If you are in a city where everyone rushes, realize that you don’t have to be like everyone else. You can be different. You can walk i...
A.
. Start to put off or cancel the unnecessary.
B.
. Meetings are usually a “big waste of time”.
C.
. The world likely won’t end if you don’t pass one of the examinations.
D.
. But here are some things to consider and perhaps adopt, if they work for your life. E. Remember the quote: if nature can get everything done without rushing, so can you. F. Pick 2-3 important things — or even just one important thing — and work on those first. G. Give yourself more time to get ready and get there.
【单选题】--- Can you believe I had to pay 50 yuan for a haircut? -----You should try the barber’s I go. It’s only 10.
【判断题】模式是相对稳定的,实例随数据库中的数据的更新而变动。
【判断题】模式是相对很稳定的,而实例是相对变动的。
【单选题】Where can you practice phone English?
A.
I can call English businesses when they are closed and try to listen to their answering machines.
B.
I can practice with my friends who are learning English by calling them on the phone.
C.
If I live in an English speaking country, I can practice with telemarketers when they call to sell something. (I won't actually buy the product, just practice my English)
D.
All of the above are great ways to practice.