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【简答题】
用0.1 mol·L-1 NaOH滴定0.1 mol·L-1 H2CO3(Ka1=10^-6.38,Ka2=10^-10.25),有 个滴定突越。(选填1,2或3)
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【简答题】A.Correspondent in Argentina. B.Correspondent in Geneva. C.Interpreter for E.U. D.Interpreter for German government.
【单选题】关于增长速度以下表述不正确的有
A.
增长速度是增长量与基期水平之比
B.
增长速度是发展速度减1
C.
增长速度有环比和定基之分
D.
增长速度只能取正值
【单选题】--- --J—A—C—K—E—T, jacket.
A.
Speil it ,please.
B.
Can you spell it?
C.
Is it a jacket?
【多选题】对制动瓦块覆面材料的基本要求是
A.
摩擦系数大
B.
耐磨性好
C.
许用比压大
D.
导热性好
【单选题】— are the books about China, please? —They're on Shelf E. [     ]
A.
Where
B.
What
C.
When
【单选题】Suppose a structure and an array are created with the code Structure Nation Dim name As String Dim continent As String Dim population As Double 'in millions Dim area As Double 'in square miles End Str...
A.
Three columns, with headers countryUC, pop, and area. The grid will display the countries in Europe (along with their populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in reverse alphabetical order and their populations and areas will be formatted with commas as thousands separators.
B.
Three columns, with headers country , population , and area. The grid will display the countries in Europe (along with their populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in alphabetical order and their populations and areas will be formatted with commas as thousands separators.
C.
Four columns, with headers countryUC, continent, pop, and area. The grid will display the countries in Europe (along with their continents, populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in alphabetical order and their populations and areas will be formatted with commas as thousands separators.
D.
Three columns, with headers countryUC, pop, and area. The grid will display the countries in Europe (along with their populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in alphabetical order and their populations and areas will be formatted with commas as thousands separators.
【简答题】At the bottom of the world lies a mighty continent still wrapped in the Ice Age and, 1 recent times, unknown to man. 2 of the continent is a complete blank on our maps. A 1,000-mile stretch of the coa...
【简答题】阅读理解。 I am Cathy Brown.   I am from America.   I am working for the  Sunshine Travel  Agency(旅行社) in Changsha now.     Last week I took a group of French holiday-makers for a week’s trip to Taiwan.   ...
【单选题】Cathy:Do you mind opening the door for me?Brown:__________
A.
Yes,I'll do it.
B.
It’s nothin9.
C.
That’s all right.
D.
Not at all.
【单选题】After months of voyage, Columbus arrived in ______ later proved to be a new continent.
A.
where
B.
which
C.
what
D.
that
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【单选题】Suppose a structure and an array are created with the code Structure Nation Dim name As String Dim continent As String Dim population As Double 'in millions Dim area As Double 'in square miles End Str...
A.
Three columns, with headers countryUC, pop, and area. The grid will display the countries in Europe (along with their populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in reverse alphabetical order and their populations and areas will be formatted with commas as thousands separators.
B.
Three columns, with headers country , population , and area. The grid will display the countries in Europe (along with their populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in alphabetical order and their populations and areas will be formatted with commas as thousands separators.
C.
Four columns, with headers countryUC, continent, pop, and area. The grid will display the countries in Europe (along with their continents, populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in alphabetical order and their populations and areas will be formatted with commas as thousands separators.
D.
Three columns, with headers countryUC, pop, and area. The grid will display the countries in Europe (along with their populations and areas) whose names begin with the letter S. The countries will be displayed capitalized in alphabetical order and their populations and areas will be formatted with commas as thousands separators.