一个圆柱体的侧面积是43.96平方分米,高是2分米,它的体积是______立方分

题型:填空题

问题:

一个圆柱体的侧面积是43.96平方分米,高是2分米,它的体积是______立方分米.

考点:圆柱的表面积圆柱的体积
题型:填空题

领导雅克萨之战,维护国家主权的是

A.皇太极

B.顺治帝

C.康熙帝

D.雍正帝

题型:填空题

(1)(C2H5)2CHCH(CH3)CH2CH(CH3)2系统命名的名称是_______________。

(2)氯乙烯的电子式是________。

(3)分子式为C6H12的某烃的所有碳原子都在同一平面上,则该烃的结构简式________________,若分子式为C4H6的某烃中所有的碳原子都在同一直线上,则该烃的结构简式为_____________。

题型:填空题

In the United States, friends can be close, constant and real. But if they move live far away from each other, little by little, they will not be as close as before. But neither side feels hurt by this. Both may exchange Christmas greetings for a year or two, perhaps a few letters for a while, then no more. If two people meet again by chance, even years later, they will be delighted and pick up the friendship again.

In America, you can feel free to visit people's homes, share their holidays and enjoy their delicious food. If you are invited to a party, just accept their hospitality(款待) for various reasons, such as crowded space, language difficulties or family customs. It is often considered more friendly to invite a person to one's home than to go to a public place. So, if your host or hostess brings you home, do not feel that you aren’t treated well. You know, strangers are not invited into the home.

Don't feel neglected if you do not find flowers awaiting you in your hotel room either. Flowers are very expensive there, hotel delivery is not certain, and arrival times are often delayed, so flowers are not often sent as a welcoming touch. Please do not feel unwanted! In fact, signs outside change in different lands, but the welcome in the heart is real and valuable.

小题1:You will find friendships _______ in America if they are not near each other.

A.die suddenly

B.come back

C.disappear gradually

D.last forever小题2:The underlined part in the last paragraph can be replaced by “______”.

A. Don’t feel you are paid little attention

B.Don’t accept an invitation quickly

C. Don’t feel you should be treated well

D.Don’t pay much attention to the flowers小题3:Which of the following is the best title for this passage? 

A.American Hospitality

B.American Friendships

C.American Invitation

D.American Welcome

题型:填空题

打开Windows XP窗口时,一般直接选中要打开的窗口图标,然后()。

A.单击

B.右击

C.双击

D.左右同击

题型:填空题

负温下厚度大于()的钢板应分多层焊接。

A.6mm

B.7mm

C.8mm

D.9mm

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