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【判断题】
集合操作可用来连接两个结果集,所有的集合操作语句都可以转换成不含集合操作的单语句查询。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】卵巢恶性肿瘤的治疗原则是
A.
手术为主，化疗、放疗为辅
B.
化疗为主，手术、放疗为辅
C.
放疗为主，化疗、手术为辅
D.
化疗、放疗为主，手术为辅
E.
手术、放疗为主，化疗为辅
【单选题】听力原文：M: The article I'm reading says that watching giant pandas at the zoo has a soothing effect on people. W: How come? Q: Where is the conversation probably taking place? (18)
A.
At the movie theatre.
B.
At a cafeteria.
C.
At the Zoo.
D.
At the library.
【单选题】听力原文：M: Look at these creatures! I've read an article which says that watching giant pandas has a soothing effect on people. W: How come? Q: What does the woman want to know? (17)
A.
Why pandas affect people that way.
B.
How the pandas are delivered.
C.
How the pandas are affected.
D.
Why people go to the zoo.
【单选题】— Do you know mother giant pandas have only one or two babies ______ ? — Sorry, I don't know. [ ]
A.
at a time
B.
at time
C.
at times
D.
at that time
【单选题】Which of the following statements is not tree?
A.
China has the ambition to become a giant in the aviation industries.
B.
The first homemade jetliner of China will be on the market later this year.
C.
China plans to open new overseas markets in Asia, Africa and South America.
D.
Airbus has more market share than Boeing in the field of China's civil aviation.
【单选题】In the sentence 'I had a lump in my throat and a lot of sad thoughts on my mind...' the figurative device 'metaphor' is used, and which word can tell?
A.
throat
B.
thought
C.
lump
D.
mind
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