【单选题】 You had 8 people In your project,one more person will be joining next week.You know that once the new person joins,the number of communication channels will increase by______.
A.No change in number of communication channels
B.8
C.12
D.20
网考网参考答案:B
网考网解析:
[解析] 在你的项目内有8个人,下周会再来一个人。你知道一旦新人加入,沟通渠道会增加______条。
A) 沟通渠道数量没有变化 B) 8
C) 12 D) 20
原来8个人时,沟通渠道为8×(8-1)/2=28条;当人员增加为9个人时,9×(9-1)/2=36。所以,沟通渠道增加了36-28=8条。这种题注意:是问增加到了多少还是增加了多少
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