Which one of the following cannot substitute for "sheer volume" in the first paragraph？
A. Large amount.
B. Large quantity.
C. Great numbers.
D. Great multitude.
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竞争者是指与企业生产相同或类似产品的企业或个人。()
政务流程再造是指政府以提高服务质量和自身工作效率为目标，对组织内部及组织之间的流程进行重新设计和组织，并优化人力和设备资源的过程。()
Which of the following is not the reason of texting explosion？
A. We change our stereotypes about the functions of our cell phones.
B. Text need less bandwidth and its expense is lower.
C. The welcome of the social sites have jumpstarted the surge of texting.
D. Our interaction has transformed into "micro-coordination" .
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