抛掷甲、乙两枚质地均匀且四面上分别标有1,2,3,4的正四面体,其底面落于桌面,

题型:解答题

问题:

抛掷甲、乙两枚质地均匀且四面上分别标有1,2,3,4的正四面体,其底面落于桌面,记所得的数字分别为A,B.(注:正四面体是共有四个面,且每个面都是正三角形的空间几何体)
(1)求
A
B
为整数的概率;
(2)若在构成的所有不同直线Ax-By=0中任取一条,求能使直线的倾斜角小于45°的概率.
考点:随机事件及其概率
题型:解答题

阅读理解。

    On February 3rd, 1949, New York Harbor (港) was an exciting place. Many people were there to greet a

ship from France. On the ship were 49 French railroad boxcars (火车车厢) filled with gifts from the people

of France to the people of America. These boxcars were from the famous Merci Train (Merci: a French word

meaning "thank you"). 

     After World War II (二战), a lot of factories,roads and farms in France had been destroyed. Many French

people had no jobs or money and had little to wear and little to eat. In the winter of 1947, a train was sent

across the United States, stopping in cities and towns along the way. At every stop, people gave whatever they

could. Factories gave clothing and medicine. Farmers gave food. Families gave money. Even school children

gave away their pocket money (零用钱). All the things were then taken to France by ship. 

     By 1949, the French had begun to recover (恢复) from the war. The Merci Train was their way of saying

"thank you" to America. French people had filled the boxcars with gifts. Most of them were personal, like

hand-made toys, children's drawings,or postcards. But the boxcars themselves were perhaps the most

meaningful of the gifts. On each car, the French people had painted the pictures of all their 40 provinces with

an American eagle on the front. The boxcars were taken to each state of America, where they were warmly

greeted.

     Now many of the states still keep their boxcars. Gifts sent by the French people can still be seen in some

museums. The Merci Train came out of the war, but it now reminds the world that countries can also work

together in peace (和平).

1.Many people crowded at New York Harbor on February 3rd, 1949 to            . [ ]

A.welcome the Merci Train

B.meet their families

C.have a big party

D.start a trip by ship

2.In 1947,a train stopped in cities across America in order to            .[ ]

A.give away clothing and food

B.get more soldiers for the war

C.collect things to help French people

D.show exhibitions from the museums

3.The underlined word "them" in Paragraph 3 refors to (指)            . [ ]

A.the American people

B.the French people

C.the boxcars

D.the gifts

4.The French people painted their 40 provinces and an American eagle on each boxcar because            . [ ]

A.they thought France was stronger than America

B.it could show the friendship between the two countries

C.the boxcars would be more beautiful

D.they were very good at painting pictures

5.The passage is mainly about            .[ ]

A.the story of the Merci Train

B.American museums where the boxcars kept

C.gifts that American people liked

D.World War II

题型:解答题

患者,男,39岁。近3日来,两胁胀痛,时有恶心呕吐,口苦,舌红苔黄腻。治疗除取期门、太冲、支沟穴外,还应取()。

A.合谷、丘墟

B.内庭、三阴交

C.阳陵泉、足三里

D.内关、行间

E.足临泣、曲池

题型:解答题

关税政策工作具有( )。

A.灵活性

B.普遍性

C.特殊性

D.原则性

题型:解答题

在窗体上画一个名称为CommonDialog1的通用对话框,一个名称为Command1的命令按钮。然后编写如下事件过程:Private Sub Command1_Click( ) CommonDialog1.FileName="" CommonDialog1.Hker="All file|*.*|(*.Doc)|*.Doc|(*.Txt)|*.Txt" CommonDialog1.Filtefindex=2 CommonDialog1.DialoSTitle="VBTest" CommonDialog1.Action=1End Sub对于这个程序,以下叙述中错误的是

A.该对话框被设置为“打开”对话框

B.在该对话框中指定默认文件名为空

C.该对话框的标题为VBTest

D.在该对话框中指定的默认文件类型为文本文件(*.Tx

题型:解答题

王某向工商局申请办理营业执照,工商局以材料不全为由一直未予办理。王某遂向法院提起诉讼。法院认为王某符合法定条件,工商局应予办理,判决工商局在一个月内为其办理营业执照。该判决属于( )类型的判决。

A.确认判决

B.履行判决

C.变更判决

D.撤消判决

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