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在单片机的C语言程序设计中，（）类型数据经常用于处理ASCII字符或用于处理小于等于255的整型数。

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买方市场下的采购策略包括：可以采用旺季少购，淡季多购的策略，利用季节差价，控制采购成本。

A. 正确
B. 错误

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磁感应强度B，磁场强度H，磁通密度φ，它们的单位名称和符号在CGS制中依次分别是（），（），（）

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车钩防跳插销安装时，装有制动软管吊链的车辆，防跳插销可安装在制动软管吊链的第（）链环中。

A. 1个
B. 2个
C. 3个
D. 4个

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What are two characteristics of the relationship between the Cisco PIN architecture and Cisco Validated Designs? （）(Choose two.)

A. Cisco is focusing on Cisco Validated Designs as a means to driving integrated networks.
B. Cisco is focusing on the PIN architecture as a means to driving integrated networks.
C. The Cisco PIN architecture is a critical mechanism for supporting integrated markets because it can be implemented quickly.
D. The Cisco Validated Designs program provides critical mechanisms for supporting integrated markets because the mechanisms can be implemented quickly.
E. Cisco Validated Designs can be implemented quickly without customer input.

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