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【多选题】
用双指示剂法测定烧碱含量时，下列叙述正确是
A.
吸出试液后立即滴定
B.
以酚酞为指示剂时，滴定速度不要太快
C.
以酚酞为指示剂时，滴定速度要快
D.
以酚酞为指示剂时，应不断摇动
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举一反三
【单选题】Only after the invention of computers, ______ a step further.
A.
did the process of automation go
B.
the process of automation went
C.
so the process of automation
D.
went the process of automation
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【单选题】Which of the following is NOT true? ______.
A.
Computers perform. not only data processing function in business, but also are used as tools in
B.
Problem-solving and decision-making
C.
In performing certain data processing tasks, computers can process information more efficiently and effectively than humans
D.
A company or individual must buy a computer system in order to be able to use one
查看完整题目与答案
【单选题】It is only thanks to the powerful new computers______worthwhile prediction in human affairs has been possible at all.
A.
who
B.
which
C.
that
D.
what
查看完整题目与答案
【单选题】一个国家或地区的居民教育程度和文化水平、宗教信仰、风俗习惯、审美观念、价值观念等，属于企业外部环境中的：
A.
政治环境
B.
社会环境
C.
技术环境
D.
经济环境
查看完整题目与答案
【单选题】如果焊缝和()不在接头的同一侧,则将焊缝基本符号标在基准线的虚线侧。
A.
辅助线
B.
指引线
C.
说明线
D.
箭头线
查看完整题目与答案
【单选题】Tom is very __________ at using computers, though he is only a high school student.
A.
good
B.
dependent
C.
confident
D.
interested
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【单选题】中华文化博大精深,辉煌灿烂,而成语是语言文化的精华。下列成语与淝水之战有直接关系的有( ) 1纸上谈兵 2风声鹤唳 3草木皆兵 4退避三舍 5投鞭断流
A.
①②③
B.
②③④
C.
③④⑤
D.
②③⑤
查看完整题目与答案
【单选题】风俗习惯、宗教信仰、价值观念等属于( )。
A.
社会文化
B.
科学技术
C.
政治文化
D.
经济环境
查看完整题目与答案
【单选题】声音为机械波,通常,空气中声音的传播速度为( )
A.
100m/s
B.
200m/s
C.
300m/s
D.
340m/s
查看完整题目与答案
【简答题】#include using namespace std; class A { public: A( ); ~A(); A(int i, int j); void print( ); private: int a, b; }; A::A( ) { a=b=0; cout<<"Default constructor called.\n"; } A::~A( ) { cout<<"Destructo...
查看完整题目与答案
相关题目：
【单选题】Only after the invention of computers, ______ a step further.
A.
did the process of automation go
B.
the process of automation went
C.
so the process of automation
D.
went the process of automation
查看完整题目与答案
【单选题】Which of the following is NOT true? ______.
A.
Computers perform. not only data processing function in business, but also are used as tools in
B.
Problem-solving and decision-making
C.
In performing certain data processing tasks, computers can process information more efficiently and effectively than humans
D.
A company or individual must buy a computer system in order to be able to use one
查看完整题目与答案
【单选题】It is only thanks to the powerful new computers______worthwhile prediction in human affairs has been possible at all.
A.
who
B.
which
C.
that
D.
what
查看完整题目与答案
【单选题】一个国家或地区的居民教育程度和文化水平、宗教信仰、风俗习惯、审美观念、价值观念等，属于企业外部环境中的：
A.
政治环境
B.
社会环境
C.
技术环境
D.
经济环境
查看完整题目与答案
【单选题】如果焊缝和()不在接头的同一侧,则将焊缝基本符号标在基准线的虚线侧。
A.
辅助线
B.
指引线
C.
说明线
D.
箭头线
查看完整题目与答案
【单选题】Tom is very __________ at using computers, though he is only a high school student.
A.
good
B.
dependent
C.
confident
D.
interested
查看完整题目与答案
【单选题】中华文化博大精深,辉煌灿烂,而成语是语言文化的精华。下列成语与淝水之战有直接关系的有( ) 1纸上谈兵 2风声鹤唳 3草木皆兵 4退避三舍 5投鞭断流
A.
①②③
B.
②③④
C.
③④⑤
D.
②③⑤
查看完整题目与答案
【单选题】风俗习惯、宗教信仰、价值观念等属于( )。
A.
社会文化
B.
科学技术
C.
政治文化
D.
经济环境
查看完整题目与答案
【单选题】声音为机械波,通常,空气中声音的传播速度为( )
A.
100m/s
B.
200m/s
C.
300m/s
D.
340m/s
查看完整题目与答案
【简答题】#include using namespace std; class A { public: A( ); ~A(); A(int i, int j); void print( ); private: int a, b; }; A::A( ) { a=b=0; cout<<"Default constructor called.\n"; } A::~A( ) { cout<<"Destructo...
查看完整题目与答案