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【简答题】
功能:求100-999之间的水仙花数 说明:水仙花数是指一个三位数的各位数字的立方和是这个数本身。 例如:153=1^3+5^3+3^3)。 #include int fun(int n) { int i,j,k,m; m=n; /***********SPACE***********/ 【1】; for(i=1;i<4;i++) { /***********SPACE***********/ 【2】; m=(m-j)/10; k=k+j*j*j; } if(k==n) /***********SPACE***********/ 【3】; else return(0); } void main() { int i; for(i=100;i<1000;i++) /***********SPACE***********/ if(【4】==1) printf("%d 是水仙花数!\n" ,i); }
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【单选题】下列关于阿伏加德罗常数的说法中正确的是
A.
阿伏加德罗常数是12 g碳中所含的碳原子数
B.
阿伏加德罗常数是0.012 kg 12 C中所含的原子数
C.
阿伏加德罗常数是6.02×10 23
D.
阿伏加德罗常数的符号为N A ,近似为6.02×10 23
【单选题】万用表黑色表笔应插入( )
A.
V
B.
A
C.
COM
【单选题】---We didn’t see him at the lecture yesterday. ---He it.
A.
mustn’t have attended
B.
couldn’t have attended
C.
wouldn’t have attended
D.
needn’t have attended 1n
【简答题】万用表的红表笔为 表笔,黑色表笔为 表笔。
【单选题】万用表黑色表笔插
A.
COL
B.
CON
C.
COM
D.
COR
【单选题】万用表黑色表笔应插入( )
A.
v
B.
A
C.
COM
【单选题】万用表黑色表笔插
A.
MOC
B.
COM
C.
MCO
D.
CMO
【单选题】“We didn’t see him at the lecture yesterday.”“He ______ it.”
A.
a. mustn’t attend
B.
b. cannot have attended
C.
c. would have not attended
D.
d. needn’t have attended
【单选题】“We didn’t see him at the exhibition yesterday.” “He ___it.”
A.
mustn’t visit
B.
can’t have visited
C.
should have gone to see
D.
may see
【单选题】“We didn’t see him at the lecture yesterday.” “He ( )it.”
A.
mustn’t attend
B.
cannot have attended
C.
would have not attended
D.
needn’t have attended
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