问题 单项选择题

下列哪种形式的胆道扩张被称作Caroli氏病

A.胆总管呈球形扩张

B.胆总管憩室

C.肝外胆管成梭形扩张

D.肝内胆管囊状扩张

E.肝内外胆管扩张

答案

参考答案:D

阅读理解与欣赏

阅读文章,回答问题。

生死攸关的烛光

谢仁超

  这是发生在第二次世界大战期间的一个真实感人的故事。

  在法国第厄普市有一位家庭妇女,人称伯瑙德夫人。她的丈夫在马奇诺防线被德军攻陷后,当了德国人的俘虏,身边只留下两个幼小的儿女:12岁的雅克和10岁的杰奎琳。为把德国强盗赶出自己的祖国,这母子三人都参加了当时的秘密情报工作,投身到为祖国解放的光荣斗争行列。

  每星期四晚,一位法国农民装扮的人便送来一个小小的金属管,内装着特工人员搜集到的绝密情报。伯瑙德夫人的任务就是保证把它安全藏好,直至盟军派人前来取走。为了把情报藏好,伯瑙德夫人想了许多办法,她先是把金属管藏在一把椅子的横档中,以后又把它放在盛着剩汤的铁锅内,尽管他们安全地躲过了好几次德军的突然搜查,但伯瑙德夫人始终感到放心不下。最后,她终于想到了一个绝妙的办法--把装着情报的金属管藏在半截蜡烛中,外面小心地用蜡封好,然后把蜡烛插在一个金属烛台上。由于蜡烛摆在当眼的桌子上,反而骗过了几次严密的搜查。

  一天晚上,屋里闯进了三个德国军官,其中一个是本地区情报部的官员。他们坐下后,一个少校军官从口袋中掏出一张揉皱的纸就着黯淡的灯光吃力地阅读起来。这时,那位情报部的中尉顺手拿过藏有情报的蜡烛点燃,放到长官面前,情况是危急的。伯瑙德夫人知道,万一蜡烛点燃到铁管处后就会自动熄灭,同时也意味着他们一家三口的生命将告结束。她看着两个脸色苍白的儿女,急忙从厨房中取出一盏油灯放在桌上。“瞧,先生们,这盏灯亮些。”说着轻轻把蜡烛吹熄。一场危机似乎过去了,但是,轻松的心情没有持续多久,那位中尉把冒着青烟的烛芯重新点燃,“晚上这么黑,多点支小蜡烛也好嘛。”他说。烛光摇曳着,发出微弱的光。此时此刻,它仿佛成为这房子里最可怕的东西。伯瑙德夫人的心提到了嗓子眼上,她似乎感到德军那几双恶狼般的眼睛都盯在越来越短的蜡烛上。一旦这个情报中转站暴露,后果是不堪设想的。

  这时候,小儿子雅克慢慢地站起来,“天真冷,我到柴房去搬些柴来生个火吧。”说着伸手端起烛台朝门口走去,房子顿时暗下来了。中尉快步赶上前,厉声喝着:“你不用灯就不行吗?”一伸手把烛台夺回。

  孩子是懂事的,他知道,厄运即将到来了,但在斗争的最后时刻,自己必须在场。他从容地搬回一捆木柴,生了火,默默地坐待最后的时刻。时间一分一秒地过去。突然,小女儿杰奎琳娇声地对德国人说道:“司令官先生,天晚了,楼上黑,我可以拿一盏灯上楼睡觉吗?”少校瞧了瞧这位可爱的小姑娘,一把拉她到身边,用亲切的声音说:“当然可以。我家也有一个你这样年纪的小女儿。来,我给你讲讲我的路易莎好吗?”杰奎琳仰起小脸,高兴地说:“那太好了……不过,司令官先生,今晚我的头很痛,我想睡觉了,下次您再给我讲好吗?……”“当然可以,小姑娘。”杰奎琳镇定地把烛台端起来,向几位军官道过晚安,上楼去了。正当她踏上最后一级阶梯时,蜡烛熄灭了。

1.本文为什么取名“生死攸关的烛光”?

 ____________________________________________________

2.第二段交代了伯瑙德夫人一家积极参加秘密情报工作,勇敢投身到为争取祖国解放的斗争行列的两个原因。请你概括出来。

  ①:_______________________________________________

  ②:_______________________________________________

3.在极其危机的情况下,伯瑙德夫人和雅克、杰奎琳三人围绕蜡烛分别用什么方法机智勇敢地与德国军官进行周旋?

 伯瑙德夫人:________________________________________

 雅克:______________________________________________

 杰奎琳:____________________________________________  

4.本文表达了作者怎样的思想感情?

 ____________________________________________________

5.假如在场的有三个孩子,你就是其中一个,你会围绕蜡烛用什么方法机智勇敢地与德国军官进行周旋?

 ____________________________________________________

单项选择题

Researchers at the University of Arizona, led by Teresa Cummins, conducted an exploratory study on the online learning modules, designed to supplement hands-on classes taught by local experts and supported by an overview text, to help users increase their understanding of key concepts in the Arizona Master Watershed Steward program. They also sought to determine whether program participants would use the non-compulsory modules.

Their evaluation revealed that module users increased their understanding of key watershed concepts; participants in the evaluation demonstrated a 30 percent increase in content knowledge following module use. Additionally, 70 percent of participants retained this knowledge through a two-month follow-up test.

A follow-up survey showed that approximately half of the participants returned to the online modules on their own; several of these users returned several times and spent multiple hours per session. Comments from the follow-up survey suggested that the users accessed the site either as they had the time or as they needed the information.

Online usage statistics indicated participants continued to visit the site for many months following the modules’ release and advertisement. Though many visits were very brief (a single pageview; only a couple of seconds), visitors with many returns to the site and/or long visits appeared to be working through the modules.

One participant stated, "My brain can only hold so much information; the modules keep information on-hand." Other participants commented that the modules were "more interesting and interactive" than the text material, and a "very effective tool" and "a great resource to the Master Watershed Steward community."

The Arizona Master Watershed Steward program, sponsored by University of Arizona, prepares adults to serve as volunteers in the conservation of water resources and the protection, restoration, and monitoring of their watersheds. The modules were intended to reinforce concepts covered in classes and further engage participants in the learning process.

One key finding was that the modules were not clearly preferred by users over in-person instruction. One participant stated, "For me, they are just another avenue for learning, a supplement or additional reference. I prefer in person and real hands-on learning." Other participants similarly expressed their desire for hands-on and face-to-face interaction. Several participants noted that the usefulness of in-person lectures—was a function of the presenter.

Overall, the exploratory evaluation indicated that the modules were a welcome supplement to the course and were effective in reinforcing key concepts. Participants retained knowledge for several weeks, although since subjects were self-selected, they may have been self-motivated to pay attention and master the online module materials.

"I am constantly searching for new ways to educate our program’s diverse audiences and reinforce watershed science concepts, " says Candice Rupprecht, state coordinator for the Master Watershed Steward program. "I am excited to know that online learning modules can enhance our program by offering additional independent learning opportunities for our volunteers.

From the second paragraph, we can infer that()

A. learners might make no progress without the online modules

B. learners are conscientious in memorizing the content knowledge

C.learners gained improvement in their study by using the online modules

D. 70 percent of program participants took the follow-up test