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【多选题】
时期数列的特点有（ ）。A.
数列中各变量数值之间具有可加性
B.
数列中各变量数值的大小与所包括的时期长短无关
C.
数列中各变量数值的大小与所包括的时期长短有关
D.
数列中各变量数值具有连续统计的特点
E.
数列中各变量数值不具有连续统计的特点
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举一反三
【简答题】钢筋的强度是指钢筋的 强度和 强度。钢筋的 强度是设计计算时的主要依据 。
【单选题】以下for语句构成的循环执行了( )次。 #define N 2 #define M N+1 #define NUM (M+1)*M/2 main() { int i,n=0; for(i=1;i<=NUM;i++) {n++;printf("%d",n);} printf("\n"); }
A.
5
B.
6
C.
8
D.
9
【简答题】以下for语句构成的循环执行了( )次。
# include #define N 1
#define M N+1
#define NUM (M+1)*M/2
main( )
{int i,n=0;
for (i=1;i<=num;i++) n++; printf("%d",NUM); }A. 5 B. 6 C. 3 D. 9
【单选题】Talk to those people who first saw films when they were silent, and they will tell you the experience was magic. The silent film had extraordinary powers to draw members of an audience into the story,...
A.
music was the most important element of silent films
B.
silent films rely on a combination of music and image in affecting an audience
C.
the importance of music in silent film has been overestimated
D.
live music compensated for the poor quality of silent film images
【单选题】Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 through 40. For each question or statement there are 4 choices marked A, B, C, a...
A.
people do all their work by telephone
B.
employees wear nightclothes while working
C.
people do their work outside companies
D.
employees communicate with each other
【简答题】Glossify the words according to the speed sound of their underlined part. (根据单词划线部分的发音分类) m er chant, sug a ry,p ur pose,c ou ntry, w or se, c u stomer, Sat ur day /ɜ:/ /ə/ /ʌ/
【单选题】以下for语句构成的循环执行了（）次。 #include #defineNi #defineMN+1 #defineNUM（M+1）*M/2 main（） {inti，n=0； for（i=1；i<=num；i++） {n++； printf（"%d"，n）； }}
A.
5
B.
6
C.
8
D.
9
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