食品接触面原则上不得使用木质材料（工艺要求必须使用除外），必须使用木质材料的工具，应保证不会对食品产生污染。
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Your network consists of a large hub - and - spoke Frame Relay network with a CIR of 56 kb/s foreach spoke. Which statement about the selection of a dynamic protocol is true?（）
A. EIGRP would be appropriate if LMI type ANS I is NOT used.
B. EIGRP would be appropriate, because the Frame Relay spokes could be segmented into their own areas.
C. EIGRP would be appropriate, because by default, queries are not propagated across the slow speed Frame Relay links.
D. EIGRP would be appropriate, because you can manage how much bandwidth is consumed over the Frame Relay interface.
我国古代自秦汉以来中央和地方管制演变的基本趋势是（）。①消弱地方，加强中央②消弱相权，加强君权③对边疆地区的管辖和治理日趋严密④逐渐强化对地方官吏的控制和监视
A. ①②③④
B. ①②③
C. ②③④
D. ①②③
下列不属于“唐宋八大家”的是（）。
A. 柳宗元
B. 范仲淹
C. 欧阳修
D. 王安石
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