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【单选题】
美国科学家本宣称，到2100年，&ldquo温室效应&rdquo引发的地球升温造成气候发生巨大的改变。根据美国政府环保署发布的一份报告，地球大气层的温度正在不断上升，到本世纪中叶，全球温度会上升2℃，而到2100年上升5℃。环保署声称，&ldquo全球发生温度激增的时间可能比我们大多数人认为的要早&rdquo。 从这段话可以推知：A.
美国科学家已经发现地球的&ldquo温室效应&rdquo
B.
人们已经普遍接受了地球&ldquo温室&rdquo理论
C.
地球上的温度肯定会发生巨大的改变
D.
我们大多数人低谷了地球升温的速度
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【简答题】微写作(共 22 分) 阅读下面文字任选一题,按要求完成微写作,并拍照上传。 你在图书馆里阅读非常喜欢的一部小说,其中有让人紧张、兴奋的故事情节,可是,书籍中有些地方被同学涂鸦了。 (1)请写一段话,向读者发出爱护公共图书的倡议。要求:理由充分,语言精练,300字左右。 (2)请介绍书中你最喜欢的一个片断。要求:注意介绍对象,条理清晰,语言精练,300字左右。 (3)书中人物的命运或精神给你以触动...
【单选题】What can be inferred about the student?
A.
He is an international student.
B.
He is proud of his work ethics.
C.
He is high maintenance.
D.
He will be accepted at the university.
【单选题】Which of the following is true about a shy person?
A.
He is oversensitive to remarks about him.
B.
He has nothing to do with lack of self-esteem.
C.
He is unworthy of any praise.
D.
He lacks self-awareness.
【简答题】A．He is puzzled by his grades. B．He is unclear about his lectures, C．He is confused by his presentation. D．He does not know whose course to choose next term.
【多选题】Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? （）
A.
It releases the storage space used by the table.
B.
It does not release the storage space used by the table.
C.
You can roll back the deletion of rows after the statement executes.
D.
You can NOT roll back the deletion of rows after the statement executes.
E.
An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.
F.
You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table
【单选题】To display rows or columns that were previously hidden, select the rows or columns that border the hidden section. Right-click, then choose ____.
A.
Reveal
B.
Unhide
C.
Display
D.
Show
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