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【简答题】
在分析化学的数据处理中,加减法的规则是按照小数点后位数____的一个数字来决定结果的保留有效数字位数;而乘除法的结果则是和算式中有效数字位数____的数据相同。
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参考答案:
举一反三
【判断题】在导游讲解中经常运用引用这种方法来增强语言的表达效果,引用包括明引,意引和暗引三种形式。P149
A.
正确
B.
错误
【单选题】Her story shows how gentle stubbornness and an indifference to honors and fame can lead to great achievements.
A.
persuasion
B.
determination
C.
devotion
D.
reservation
【单选题】(一)( 2019全国卷)文言文阅读(本题共4小题,19分) 阅读下面的文言文,完成 10~13题。 贾生名谊洛阳人也年十八以能诵诗属书闻于郡中吴廷尉为河南守闻其秀才召置门下甚幸爱 孝文皇帝初立,闻河南守吴公治平为天下第一,故与李斯同邑而常学事焉,乃征为廷尉。廷尉乃言贾生年少,颇通诸子百家之书。文帝召以为博士。是时贾生年二十余,最为少。每诏令议下,诸老先生不能言,贾生尽为之对,人人各如其意所欲出。...
A.
贾生名谊/洛阳人也/年十八/以能诵诗属书闻于郡中吴廷尉/为河南守/闻其秀才/召置门下/甚幸爱/
B.
贾生名谊/洛阳人也/年十八/以能诵诗属书闻于郡中/吴廷尉为河南守/闻其秀才/召置/门下甚幸爱/
C.
贾生名谊/洛阳人也/年十八/以能诵诗属书闻于郡中/吴廷尉为河南守/闻其秀才/召置门下/甚幸爱/
D.
贾生名谊/洛阳人也/年十八/以能诵诗属书闻/于郡中吴廷尉为河南守/闻其秀才/召置门下/甚幸爱/
【简答题】阅读下面的文言文,完成10~13题。 贾生名谊洛阳人也年十八以能诵诗属书闻于郡中吴廷尉为河南守闻其秀才召置门下甚幸爱孝文皇帝初立,闻河南守吴公治平为天下第一,故与李斯同邑而常学事焉,乃征为廷尉。廷尉乃言贾生年少,颇通诸子百家之书。文帝召以为博士。是时贾生年二十余,最为少。每诏令议下,诸老先生不能言,贾生尽为之对,人人各如其意所欲出。诸生于是乃以为能不及也。孝文帝说之,超迁,一岁中至太中大夫。贾生以...
【单选题】Read the introduction [paragraphs 1-6]. How is bouldering different from lead climbing?
A.
In bouldering, people race up tall walls, and in lead climbing people have to be careful not to fall because they do not have ropes.
B.
In bouldering, people follow paths on low walls, and in lead climbing people see how high they can climb in six minutes.
C.
In bouldering, people use ropes to stay safe, and in lead climbing people climb sideways across a low wall.
D.
In bouldering, people climb indoors, and in lead climbing people climb outdoors as long as the weather is good.
【单选题】How did scientists discover the source of lead pollution in Greenland( )?
A.
By analyzing the data published in journals like Nature and Ambio.
B.
By observing the lead accumulations in different parts of the arctic area.
C.
By studying the chemical elements of soil and snow in Northeastern America.
D.
By comparing the chemical compositions of leaded gasoline used in various countries.
【多选题】工程各参建单位应该确保各自的资料真实、准确、齐全,且( ABDE )。
A.
无未了事项
B.
字迹清楚
C.
美观
D.
有效
E.
完整
【单选题】下列哪种继电器用于给出指示信号。()
A.
时间继电器
B.
信号继电器
C.
中间继电器
D.
电流继电器
【单选题】How did scientists discover the source of lead pollution in Greenland?
A.
By analyzing the data published in journals like Nature and Ambio.
B.
By studying the chemical elements of soil and snow in North eastern America.
C.
By comparing the chemical compositions of leaded gasoline used in various countries.
D.
By observing the lead accumulations in different parts of the arctic area.
【简答题】利用拉伸回转命图示零件的造型。
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