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问题 选择题

河水的流速为4m/s，船要从河的南岸A点沿与河岸成30°角的直线航行到北岸时，则船相对水的速度的最小值为

[ ]

A．5m/s

B．4m/s

C．3m/s

D．2m/s

答案

D

完形填空

根据文章大意及首字母，用适当的词完成短文（共6小题，每小题1分，满分6分）

Xiao Ming knows English plays an important 小题1:r_______in today's world. So he works hard to enlarge his vocabulary, for he believes that the more English words he learns, the better his English will be. And his English is improving rapidly because of his hard work.

In this year's summer holiday, he went to the UK, where he grasped every 小题2:o_____to speak to the小题3:n_____English speakers. He tried to speak English with British 小题4:a_______ . He also found that sometimes the Britons and the Americans use different words for the same thing. For example, the Americans say gas, 小题5:e_______ ,apartment and candy, while the Britons say petrol, lift, flat and 小题6:s______.
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单项选择题

下列关于重大环境污染事故罪和投放危险物质罪的区别的表述中，不正确的是( )。

A．侵害的客体不同。重大环境污染事故罪的客体是国家对环境保护和污染防治的管理活动，而投放危险物质罪的客体是公共安全

B．重大环境污染事故罪必须要求物质性的危害结果的发生，投放危险物质罪是危险犯

C．主体不同。重大环境污染事故罪的主体既可以是自然人也可以是单位，而投放危险物质罪的犯罪主体只能是自然人，就自然人而言两者的刑事责任年龄是一样的

D．主观方面不同。重大环境污染事故罪的主观方面为过失，而投放危险物质罪的主观方面是故意
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