It was a very foggy day in London. The fog was so thick that it was impossible to see more than a foot or so. Buses, cars and taxis were not able to run and were standing by the side of the road. People were trying to find their way about on foot but were losing their way in the fog. Mr. Smith had a very important meeting at the House of Commons and had to get there but no one could take him. He tried to walk there but found he was quite lost. Suddenly he bumped into a stranger. The stranger asked if he could help him. Mr. Smith said he wanted to get to the Houses of Parliament. The stranger told him he would take him there. Mr. Smith thanked him and they started to walk there. The fog was getting thicker every minute but the stranger had no difficulty in finding the way. He went along one street, turned down another, crossed a square and at last after about half an hour’s walk they arrived at the Houses of Parliament. Mr. Smith couldn’t understand how the stranger found his way. “It is wonderful,” he said. “How do you find the way in the fog?”
“It is no trouble at all to me,” said the stranger, “I am blind.”
小题1:According to the passage, we can infer that “bump into” means _______.
A．knock off
B．meet by chance
C．strike
D．traffic accident小题2:Which of the following statements are NOT true?
A．The stranger has a better sight than Mr. Smith.
B．Heavy fog can cause traffic accidents.
C．It’s easy to get lost in a foggy day.
D．The fog was getting thicker and thicker.小题3:Why is it no trouble at all to the stranger to find the way in the fog?
A．Because he is a local inhabitant of London.
B．Because he lives next to the Houses of Parliament.
C．Because he is familiar with the route.
D．Because he finds the way not by sight but by heart.小题4:This article mainly tells us that ________.
A．London is a foggy city.
B．Mr. Smith works for the government.
C．A blind stranger led the way for Mr. Smith in a foggy day.
D．Mr. Smith had a very important meeting and lost his way in the fog.
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K对策生物一旦受到危害而种群下降就难以恢复。 ( )
8月8日、9月9日、10月10日,是时下年轻一代眼中的“黄道吉日”,他们都想在吉祥的日子里步人婚姻的殿堂。从本质上看,选择黄道吉日的做法是以下哪种世界观的体现
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B．辩证唯物主义
C．客观唯心主义
D．古代朴素唯物主义
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(2)设t＝0.1 s时刻射入电场的带电粒子恰能从平行金属板边缘射出，求该带电粒子射出电场时的速度大小。
(3)对于所有经过电场射入磁场的带电粒子，设其射入磁场的入射点和从磁场射出的出射点间的距离为d，试判断d的大小是否随时间而变化？若不变，证明你的结论；若变，求出d的变化范围。
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B．汽油挥发
C．蜡烛燃烧
D．铁锅生锈
道路清扫一般是（）搭茬扫，每次搭茬宽度不低于100－150mm。
A.弧线
B.直线
C.曲线
D.随意