When Columbus reached the New World,
com was the most widely grown plant in the Americas. This plant’s range extended
from what is now southern Canada to lower South America. At that time some
tribes cultivated it at sea level, others at elevation(海拔高度) of more than 11 000
feet. "Columbus had no way of knowing that corn was far more valuable than the spices(香料) and gold he had hoped to find." said Frances B. King, a professor at a university of Pittsburgh. Through human intervention, this plant has developed into several hundred races, or varieties. Their heights vary from 2 to 12 feet, and their maturity ranges from little more than 2 months to almost a year. Their ears vary not only in color, but also in size. Unlike other cereals(谷类), corn bears little resemblance to its wild ancestors. In fact, it differs from the ap A. the purpose of Columbus’ exploration was to discover com B. corn was one of Columbus’ discoveries, but more precious than anything else C. Columbus knew corn so well that he brought back to Europe at once D. corn was the only Columbus’ discovery that was remembered [单选题]( )年,大行政区在其完成中央政府“以简驭繁”,转分裂为统一的历史使命面临着被撤销的命运。
A.1926 B.1927 C.1928 D.1929 [单选题]-1.关于资产管理的特征,以下表述正确的是()。
A.资产管理的委托人主要通过投资于实物管理资产的增值 B.资产管理的委托人委托受托人管理资产往往是以非盈利为目的的 C.委托管理的资产主要是能产生现金流入的固定资产等实物资产 D.资产管理的委托方为投资人,受托方为资产管理人 [填空题]建立健全( ) 的从严管理 体系。
[单选题] 90/60m m Hg 的血压,换算为kPA.为
A. 9.7/6.5kPA. B. 10.7/7.5kPA. C. 11. .97/ 7.98kPA. (1m m hg=0.133kpA.) D. 12.7/8.4kPA. E. 13.7/9.0kPA. [单选题]入窖温度在春、秋两季控制在工艺范围内,( )适当提高1—2度。
A. 夏季 B. 春季 C. 冬季 D. 大约是在冬季 [单项选择]全新福特锐界使用AGS进气格栅主动关闭系统,在发动机低速低负荷的情况下,进气格栅会主动关闭,降低风阻,会提高以下()特性。
A. 驾驶安全性 B. 外形美观性 C. 乘坐舒适性 D. 燃油经济性 [填空题]
[听力原文]11-15 The stories about ______ during World War Ⅱ. [单选题][单选题]心室肌细胞绝对不应期的产生是由于
A.Na+通道为激活态 B.Na+通道为备用态 C.Ca2+通道为激活态 D.Ca2+通道为失活态 E.Na+通道为失活态 [单项选择]63×64+36×37+63×74=( )。
A. 10006 B. 10016 C. 10026 D. 10036 [判断题]运营期间遇站台门故障等可利用行车间隔进行处理的,必须申报
施工计划,行车调度视情况组织车站利用行车间隔进行处理。
A.正确 B.错误 [单选题]下列遗嘱形式中,不需要见证人在场即为有效的是( )
A.自书遗嘱 B.口头遗嘱 C.代书遗嘱 D.录音遗嘱 [单项选择]《公民道德建设实施纲要》明确提出,要大力倡导以()为主要内容的职业道德。
A. 爱国守法、明礼诚信、团结友善、勤俭自强、敬业奉献 B. 爱祖国、爱人民、爱劳动、爱科学、爱社会主义 C. 爱岗敬业、诚实守信、办事公道、服务群众、奉献社会 D. 尊老爱幼、反对迷信、不随地吐痰、不乱扔垃圾 我来回答: 提交
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