| In the summer of 1978 an English farmer
was driving his tractor through a field of wheat when he discovered that some of
his wheat was lying flat on the ground. The flattened wheat formed a circle
about six meters across. Around this circle were four smaller circles of
flattened wheat. The five circles were in a formation like five dots. During the
following years, farmers in England found the strange circles in their fields
more and more often. The circles are called "crop circles" because they appear in the fields of grain--usually wheat or corn. The grain in the circles lies flat on the ground but is never broken; it continues to grow, and farmers can later harvest it. Farmers always discover the crop circles in the morning, so the circles probably form at night. They appear only in the months from May to September. At fi A. airplane crashes B. new farming techniques C. unknown flying objects D. air movement [单选题]合同签订原则上使用什么类型印章( )?
A.法人章 B.单位公章 C.合同专用章 D.仅签字不盖章 [多选题]培训系统设计、开发必须回答三个问题,即( )。
A.培训目标是什么 B.开展哪些活动才能实现目标 C.怎样检验目标是否达到 D.培训的成本是多少 E.培训的效果如何 [单项选择]药品生产质量管理规范简称
A. GNP B. GDP C. GMP D. GSP E. 其他 [单选题]腹部检查方法以哪种最为重要( )
A.视诊 B.触诊 C.听诊 D.叩诊 E.嗅诊 [单选题]用来将汽相物质冷凝成液体的换热设备叫( )器。
A.冷凝 B.冷却 C.再沸 [判断题] 为有效维护社会治安,铁路、交通、民航、森林公安派出所对其管辖的治安案件可以作出警告、500元以下罚款的治安管理处罚决定
A.正确 B.错误 [单选题]超长列车运行办法由()规定。
A.铁路总公司 B.铁路局 C.调度所 D.列车调度员 [判断题]耐压2.5兆帕为高压水带。( )
A.正确 B.错误 [判断题]热塑型粉末涂料有环氧树脂聚酯环氧-聚酯丙烯酸等。( )
A.正确 B.错误 [多选题]根据《分布式电源并网相关意见和规范（修订版）》（国家电网办〔2013〕1781号），哪些分布式电源可采用无线公网通信方式。(____)
A.380伏接入的分布式电源 B.10千伏接入的分布式光伏发电 C.10千伏接入的分布式风电 D.10千伏接入的分布式海洋能发电项目 E.10千伏接入的分布式生物质能发电项目 [单项选择]If a country wants to develop its economy successfully, there has to be a clear______of its social needs.
A. appreciation B. assurance C. assumption D. assessment [判断题]《生产安全事故报告和调查处理条例》规定,道路交通事故、火灾事故自发生之日起15日内,事故造成的伤亡人数发生变化的,应当及时补报。
A.正确 B.错误 [简答题]列车运行图是列车在各区间运行和在各车站到发、通过、会让、越行时刻的( )。
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