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【判断题】
国务院《节能减排综合性工作方案》要求强化重点企业节能减排管理。重点耗能企业建立能源管理师制度。实行重点耗能企业能源审计和能源利用状况报告及公告制度。()
A.
正确
B.
错误
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is it
B.
do we
C.
isn't it
D.
don't we
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【单选题】关系数据库是(65)的集合，它由一个或多个关系模式定义。
A.
字段
B.
列
C.
元组
D.
表
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【单选题】You and I both know that candy isn't good for our teeth, so why do we continue to eat it?
A.
1
B.
2
C.
3
D.
4
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【单选题】From the text, we know that the sun is a star, isn't it?
A.
Yes, it is.
B.
No, it isn't.
C.
Yes, it isn't.
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【判断题】SQL Server中的数据表是一个重要的数据库对象，表定义为列的集合。
A.
正确
B.
错误
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【判断题】表定义是一个列集合。
A.
正确
B.
错误
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【单选题】The financial situation isn't bad yet, but we believe that we have some vital information and, if it is correct, unemployment will soon become a serious problem. What do we know about the financial si...
A.
It won't change.
B.
It will become a serious problem.
C.
It is not bad now.
D.
It will improve.
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【单选题】具有抑制体液免疫和细胞免疫功能的T细胞是
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Tc 细胞
B.
Ts细胞
C.
TH1细胞
D.
TH2细胞
E.
Ti细胞
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【单选题】表定义是一个()。
A.
数集合
B.
项集合
C.
列集合
D.
字符串集合
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【单选题】Michelle Obama told the audience not to “ let anyone ever tell you that this country isn't great, that ____ we need to make it great again.”
A.
somehow
B.
somewhat
C.
somewhere
D.
otherwise
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【单选题】The financial situation isn't bad yet, but we believe that we have some vital information and, if it is correct, unemployment will soon become a serious problem. What do we know about the financial si...
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Tc 细胞
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Ts细胞
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TH1细胞
D.
TH2细胞
E.
Ti细胞
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【单选题】表定义是一个()。
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数集合
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项集合
C.
列集合
D.
字符串集合
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【单选题】Michelle Obama told the audience not to “ let anyone ever tell you that this country isn't great, that ____ we need to make it great again.”
A.
somehow
B.
somewhat
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somewhere
D.
otherwise
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