Dandy-Walker综合征的CT表现不包括（） A.颅后窝囊肿与扩大的四脑室相通

阅读下面的文字，完成第1-4题。

                                                                         炉中煤

                                                                                 ——眷念祖国的情绪

        啊，我年青的女郎！／我不辜负你的殷勤，／你也不要辜负了我的思量。／我为我心爱的人儿，／燃到了这般模样！

        啊，我年青的女郎！／你该知道了我的前身？／你该不嫌我黑奴卤莽？／要我这黑奴的胸中，／才有火一样的心肠！

        啊，我年青的女郎！／我想我的前身，／原本是有用的栋梁。／我活埋在地底多年，／到今朝才得重见天光。

        啊，我年青的女郎！／我自从重见天光，／我常常思念我的故乡。／我为我心爱的人儿，／燃到了这般模样！ 1920年l、2月间作

1．“年青的女郎”的形象应是怎样的？诗人为什么用“年青的女郎”来比喻自己的祖国？这一比喻表达了诗人怎样的思想感情？

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2．怎样理解“要我这黑奴的胸中，／才有火一样的心肠”？

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3．本诗采用第二人称“你”来写“年青的女郎”，这种表现形式对抒发思想感情有何好处？

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4．本诗运用反复的修辞手法，每一小节都以“啊，我年青的女郎”开头，有何表达效果？

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正确的操作是实验成功的保证。下列操作正确的是（   ）。

A               B                  C                   D

本量利分析，也称为损益平衡分析，是企业经营管理中用于预测目标利润、确定目标成本以及规划生产经营的一种现代技术方法。这里的"本量利"是指（）。

A.成本、数量、利润

B.生产成本、费用量、税后利润

C.成本、交易量、利润分析

D.成本、数量、收入分析

A long time ago, in an Italian city, the people there built a tower which was admired by everyone passing through. A little further down the road, in a neighboring city, they had built a tower of similar beauty. The two towers were equally well known. The people of the second city, envious (妒忌的) and filled with pride, planned to destroy the neighboring tower so it wouldn’t take attention away from their own. One night, they came to the tower and began to quietly undermine its foundations(地基).

The next morning, the tower was leaning(倾斜) slightly ,but nobody noticed. The same happened for the following few days, until a little girl who was passing by pointed up at the tower and said: “ I think the tower is going to fall down.” And everyone around looked closely, and could see that she was right .Nervousness spread through the city. And they tried many methods to try to straighten the tower, but nothing seemed to work. That was, until one day when the same little girl was walking up again, and she put her arm on the side of the tower to rest. She felt the tower shaking slightly. When she took her hand off it, the movement stopped. And when she put it back on again, the same thing happened. The girl spent a while doing this, until she was completely certain of what she had discovered: “ The tower is ticklish ( 怕痒的) ！” She ran to get some plants, and she planted them right next to the tower. Now if the tower leant over any further it would be tickled by the leaves of those plants. Being a ticklish tower, it would then return to where it had been. In this way, the girl managed to make sure that the tower didn’t fall down, but still kept it leaning a little.

The fact that it was leaning made it even more famous, and this taught a fine lesson to the envious people of the neighboring city.

小题1:Why did the people of the second city plan to destroy the neighboring tower?

A．Because the tower blocked the way of their tourists.

B．Because the tower had the same building style as theirs.

C．Because they hoped that the tower could lean slightly.

D．Because they hoped that visitors just liked their own tower.小题2:The underlined word“undermine”（in Paragraph1）probably mean “_________”．

A．test

B．raise

C．damage

D．strengthen小题3:When local people heard the news that their tower was going to fall down, they were _________.

A．very anxious

B．very happy

C．very ashamed of themselves

D．angry at the people in the neighboring city小题4:What lesson can we learn from the practice of the envious people in the neighboring city?

A．All that ends well is well.

B．Every dog has his day.

C．A bad beginning makes a bad ending.

D．A friend is never known till a man has need.

共同动脉干描述错误的是

A．Ⅳ型为左白-肺动脉缺如，肺循环由起自降主动脉的支气管动脉供血

B．肺动脉起源于共同动脉干

C．均合并房间隔缺损

D．超声表现为全心扩大

E．瓣叶可为一叶、二叶、三叶或四叶