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【单选题】
若要对a进行合法的自减运算,则之前应有下面 的说明。A.
int p[3];
B.
int k; int * a=p; int * a=&k;
C.
char * a[3]
D.
int a[10]; int * a=b+1;
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【单选题】To assess how well a student is performing relative to his or her own previous performance，a teacher would use_________ assessment.
A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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