国家标准是指必须在全国范围内统一的标准，包括GB、GB/A、GB/D。
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患者男性，40岁，体重73kg，因“右前臂及腕部被热液烫伤后48小时”来诊。Ⅲ度烧伤面积2%，拟在臂丛麻醉下行右上肢前臂清创、皮瓣转移术。肌间沟法穿刺注药时，患者诉肢体远端剧烈放射样疼痛，注入2%利多卡因+0.75%布比卡因混合液25ml后，患者意识消失，心搏骤停。可能的原因包括（）
A. 局部麻醉药中毒
B. 全脊椎麻醉
C. 局部麻醉药过敏
D. 晕针
E. 疼痛休克
F. 突发心肌梗死
“近日，中央电视台邀请西部计划志愿者的典型代表李××、安××、唐××以及团中央青年志愿者工作部负责人做客《实话实说》栏目，就社会共同关注的西部计划志愿服务话题进行了访谈。首都部分高校志愿者代表作为现场观众参加了节目录制。”这是一份简报的导语，其写法属于（）。
A. 叙述式
B. 提问式
C. 结论式
D. 描写式
You are the network administrator for Test King. All network servers run Windows Server 2003. You perform a full backup of the network every Monday. You perform incremental backups on Tuesday, Wednesday, Thursday, and Friday. Backups are always performed at 1:00 A.M. On Friday afternoon, a user accidentally deletes a file. You need to restore the file. What should you do?（）
A. Open each backup log, beginning with Monday and moving forward through the week. In each log, search for a backup of the file. Restore the first backup that you find.
B. Open each backup log, beginning with Friday and moving backward through the week. In each log, search for a backup of the file. Restore the first backup that you find.
C. Open each backup log, beginning with Tuesday and moving forward through the week. In each log, search for a backup of the file. Restore the first backup that you find.
D. Open the backup log for Monday. Search for a backup of the file. If you find a backup, restore the file. If you do not find a backup, open the backup log for Friday and search there. If you find a backup, restore the file. If you do not find a backup, continue opening backup logs, moving backward through the week from Friday Restore the first backup that you find.
2011年6月，《国务院关于开展城镇居民社会养老保险试点的指导意见》（国发[2011]18号）出台，2011年7月1日启动试点，这是我国为加快建设覆盖城乡居民的社会保障体系的又一重大战略部署。 Q市城镇居民孙某2011年62岁，未享受城镇职工基本养老保险和国家规定的其他养老待遇，以下说法正确的是（）。
A. 孙某不能参加城镇居民社会养老保险
B. 孙某可以参加城镇居民社会养老保险，补缴10年缴费后可按月领取基础养老金和个人账户养老金
C. 孙某可以参加城镇居民社会养老保险，一次性缴清15年缴费总额后可按月领取基础养老金和个人账户养老金
D. 孙某可以参加城镇居民社会养老保险，不需缴费，可按月领取基础养老金
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