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【单选题】
In the distribution part of the business model canvas, what are benefits of selling direct to customers rather than using other companies as distributors and retailers?A.
Lower costs
B.
Better understanding of customers via direct relationships with them
C.
Higher prices
D.
a. and b. above
E.
b. and c. above
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举一反三
【单选题】若有如下定义:char s[]="string",t[]="copyto", *p=s, *q=t;要将字符串"string"拷贝到字符数组t中,正确的语句是 。
A.
t=s;
B.
*q=*p;
C.
strcpy(s,t);
D.
strcpy(q, p);
【单选题】已知X、Y为两个带符号的定点整数，它们的补码为：[X]补=00010011B，[Y]补=11111001B，则[X+Y]补 = （ ）。
A.
00001100B
B.
10001100B
C.
00001101B
D.
11110011B
【简答题】物理层与层2的接口是『____』。(The intece between physical layer and layer 2 is 『____』.)