安全检查用加速器、中子发生器和放射治疗用X射线、电子束加速器是Ⅱ类射线装置。
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对于愈演愈烈的送礼风、人情风，教师对家长采取各种方式表达“心意”，最好的办法是（），不给学生、家长的各种表达“心意”机会
下列属于第六代导演的是（）。
A. 路学长
B. 田壮壮
C. 何群
D. 李少红
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。
A. 正确
B. 错误
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.
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