设机器码的长度为 8， x 为带符号纯小数，y 为带符号纯整数， [X]原 ＝11111111， [Y]补 ＝ 11111111 ，则 x 的十进制真值为（1） ，y 的十进制真值为（2 ） 。
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{{B}}Text{{/B}} Most people have no idea of the hard work and worry that go into the collecting of those fascinating birds and animals that they pay to see in the zoo. One of the questions that is always asked of me is{{U}} (26) {{/U}}I became an animal collector in the first{{U}} (27) {{/U}}. The answer is that I have always been interested in animals and zoos. According to my parents, the first word I was able to say with any{{U}} (28) {{/U}}was not the conventional “mamma” or “daddy”, {{U}} (29) {{/U}}the word “zoo”, which I would{{U}} (30) {{/U}}over and over again with a shrill{{U}} (31) {{/U}}until someone, in group to{{U}} (32) {{/U}}me up, would take me to the zoo. When I {{U}} (33) {{/U}}a little older, we lived in Greece and I had a great{{U}} (34) {{/U}}o A. who B. they C. of which D. which [单选题].同一厂站、线路可有多组操作人员同时进行没有逻辑关系的 倒闸操作任务,但应由( )值班负责人统筹协调。
A.不同 B.同一 C.至少两位 D.至少三位 [判断题]电力电子设备或者变流设备的电磁兼容性应当符合国家标准、规范要求。电气设备不应超过额定值运行。( )
A.正确 B.错误 [单项选择]下列不属于脑保护策略的措施是（）
A. 降低细胞缺氧的兴奋毒性 B. 抑制炎症反应 C. 建立侧支循环 D. 抑制细胞凋亡 E. 避免过度通气，需允许性高碳酸血症 [单选题] 信号微机监测系统模入板将采集到的模拟信号送入CPU板进行( )处理。
A.D/A转换 B.A/D转换 C.滤波 D.放大 [单选题]一般情况下，使用调高垫板调线路水平时，每处调高垫板不得超过( )。
A.l块 B.2块 C.3块 D.4块 [单选题]土钉墙支护的土钉与水平面夹角为()。
A.30°～45° B.45°～60° C.20°～30° D.5°～20° [单选题]关于年龄与疾病的关系，哪项是错误的
A.佝偻病、麻疹多见于幼儿与儿童 B.白喉多见于幼儿与儿童 C.结核病多见于老年人 D.风湿热多见于少年与青年 E.动脉硬化、冠心病多见于老年人 [单选题]在作业繁忙的调车场上，因受地形、地物影响，调车机车司机看不清调车指挥人的手信号时，应设()表示器。
A.发车 B.发车线路 C.调车 D.进路 [单项选择]使用具有切断直流负载能力的、不带热保护的小空气开关取代原有的直流熔断器，小空气开关的额定工作电流应按最大动态负荷电流（即保护三相同时动作、跳闸和收发信机在满功率发信的状态下）的（）倍选用。
A. 1.5-2.0倍 B. 2.0-3.0倍 C. 3.0-5.0倍 D. 5.0-6.0倍 [填空题]在两种基本测试方法中，______测试的原则之一是保证所测模块中每一个独立路径至少要执行一次。
[判断题]半公里标表示从铁路线路起点开始计算的连续里程。（ ）
A.正确 B.错误 [单选题]“文景之治”出现在哪个朝代？（ ）
A.周 B.汉 C.唐 D.宋 [填空题]
Things must be going well in the parcels business. Consumers
and companies continue to flock in droves to the internet to buy and sell
things. FedEx reported its busiest period ever last December, {{U}} (31)
{{/U}} it handled almost 9m packages in a single day. Online retailers also
{{U}} (32) {{/U}} new records in America. Excluding travel, some $ 82
billion was spent last year {{U}} (33) {{/U}} things over the internet,
24% more than in 2004, {{U}} (34) {{/U}}to comScore Networks,
which tracks consumer behavior. Online sales of clothing, computer software,
toys, and home and garden products were all up {{U}} (35) {{/U}} more
than 30%. {{U}} (36) {{/U}} most of this stuff was either posted or
delivered {{U}} (37) {{/U}} parcel companies.
The boom is global, especially now that more companies are outsourcing production. It is becoming increasingly common for products to be {{U}} (38) {{/U}} direct from factory to consumer. "The i [单选题]中转列车人机分工人工检查范围和质量标准：空重车自动调整装置限压阀、调整阀、传感阀（）
A.无裂损 B.无缺损 C.无剥离 D.无破损 [名词解释]土地使用制
[单选题]46.治疗肺炎球菌肺炎的首选抗生素是（ ）
A.青霉素 B.红霉素 C.羧苄西林 D.氟哌酸(诺氟沙星) E.丁胺卡那霉素(阿米卡星) [单项选择]Passage Three
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