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【判断题】
导管和 筛 胞 是被子植物 输导水分和无机盐 的组织 。A.
正确
B.
错误
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【简答题】下面程序的功能是求出用数字0至9可以组成多少个没有重复的三位偶数，请填空。 main() {intn,i,j,k; n=0; for(i=1;i＜=9;i++) for(k=0;k＜=8;______) if(k!=i) for(j=0;j＜=9;j++) if(______) n++: printf("n=%d\n",n); }
【简答题】A．She has been studying late into night all week. B．She has made plans to work late all week. C．She has not been free to go out with Abruzzi all week. D．She has been busy tidying up her apartment all ...
【简答题】测土配方施肥的步骤有哪些?
【简答题】下面程序的功能是求出用数字0至9可以组成多少个没有重复的三位偶数。请填空。 #include main() { int n,i,j,k; n=0; for(i=1;i<=9;i++) for(k=0;k<=8; 【1】) if(k!=i) for(j=0;j<=9;j++) if( 【2】) n++; printf(“n=%d\n”,n); }
【单选题】They’re late. The film _______ for half an hour.
A.
Has begun
B.
has been on
C.
started
D.
has started
【单选题】They are late. The film __________ for five minutes.
A.
has begun
B.
has started
C.
has been on
D.
began
【单选题】No one except two students ______ the meeting. a. has been late for b. have been late for c. was late for d. were later for
A.
has been late for
B.
have been late for
C.
was late for
D.
were late for
【简答题】下面程序的功能是求出用数字 0 至 9 可以组成多少个没有重复的三位偶数。请填空。 #include main() { int n,i,j,k; n=0; for(i=1;i<=9;i++) for(k=0;k<=8; ) if(k!=i) for(j=0;j<=9;j++) if( ) n++; printf(“n=%d\n”,n); }
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