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【单选题】
1747 年美国科学家进行雷电实验的主要意义是
A.
促使人们发明了莱顿瓶
B.
促使人们发明了感应起电机
C.
使人们认识到电现象和磁现象是无关的
D.
使人们认识到雷电和地面电现象的性质相同
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【简答题】变压器的损耗有铁损耗和( )。
查看完整题目与答案
【多选题】关于模式与实例的描述正确的是:
A.
模式只是对记录型的描述，而与具体的值无关
B.
同一个模式可以有很多实例
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
D.
模式是相对变动的，实例是相对稳定的
查看完整题目与答案
【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.
查看完整题目与答案
【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.
A.
as
B.
which
C.
where
D.
that
查看完整题目与答案
【判断题】模式是相对稳定的，而实例是相对变动的。
A.
正确
B.
错误
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【单选题】车辆识别代码LE4EJ68WAV5700321中等1位码L表示( )。
A.
美国制造
B.
中国制造
C.
日本制造
查看完整题目与答案
【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。
A.
正确
B.
错误
查看完整题目与答案
【判断题】模式中查对稳定的,而实例是相对变动的。
A.
正确
B.
错误
查看完整题目与答案
【判断题】模式是相对很稳定的,而实例是相对变动的。
A.
正确
B.
错误
查看完整题目与答案
【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.
查看完整题目与答案
相关题目：
【简答题】变压器的损耗有铁损耗和( )。
查看完整题目与答案
【多选题】关于模式与实例的描述正确的是:
A.
模式只是对记录型的描述，而与具体的值无关
B.
同一个模式可以有很多实例
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
D.
模式是相对变动的，实例是相对稳定的
查看完整题目与答案
【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.
查看完整题目与答案
【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.
A.
as
B.
which
C.
where
D.
that
查看完整题目与答案
【判断题】模式是相对稳定的，而实例是相对变动的。
A.
正确
B.
错误
查看完整题目与答案
【单选题】车辆识别代码LE4EJ68WAV5700321中等1位码L表示( )。
A.
美国制造
B.
中国制造
C.
日本制造
查看完整题目与答案
【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。
A.
正确
B.
错误
查看完整题目与答案
【判断题】模式中查对稳定的,而实例是相对变动的。
A.
正确
B.
错误
查看完整题目与答案
【判断题】模式是相对很稳定的,而实例是相对变动的。
A.
正确
B.
错误
查看完整题目与答案
【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.
查看完整题目与答案