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【单选题】
字义变量str1为字符串型并赋初值为空字符串，以下正确的语句是（）A.
char s="";
B.
int s="";
C.
string s;
D.
string s="";
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【单选题】Why does the authors of the book suggest the use of a deaf subject?
A.
Deaf people are generally not so sociable.
B.
The auditory sense is an important factor in food evaluation.
C.
They are more critical in their choice of foods.
D.
All types of subjects should be used.
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【单选题】The authors of the book suggest the use of deaf subject because ______.
A.
deaf people are generally introversive
B.
the auditory sense is an important factor in food evaluation
C.
they are more fastidious in their choice of foods
D.
all types of subjects should be used
【简答题】资本公积和盈余公积均可以用来转增资本，都是从税后利润中提取的有专门用途的资金。( )
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