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边帮角（边坡角）
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何谓双期和多期扫描？肝脏的双期扫描指哪两期？指出双期的大致起始扫描时间。
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薪酬水平定位的()，是指企业发放的报酬高于市场平均工资水平
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A: Good morning．My name is Mr．Brown．I'm from Australia．Here is my card. B: Thank you．I'm pleased to meet you, Mr．Brown．My name is Kathy Perless, the representative of GREen Textile Import and Export Corporation. A: Pleased to meet you too, Ms．Perless．I travel a lot every year on business, but this is my first visit to your country．I must say I have been much impressed by your friendly people. B: Thank you for saying so．Have you seen the exhibition halls? On display are most of our products, such as silk, woolen knitwear, cotton piece goods, and garments. A: Oh, yes．I had a look yesterday．I found some of the exhibits to be fine in quality and beautiful in design．The exhibition has successfully displayed to me what your corporation handles．I've gone over the catalogue and the pamphlets enclosed in your last letter．I've got some idea of your exports．I'm interested in your silk blouses. B: Our silk is known for its good quality．It is one of our traditional exports．Silk blouses are brightly colored and beautifully designed．They've met with great favor overseas and are always in great demand. A: Some of them seem to be of the latest style．Now I've a feeling that we can do a lot of trade in this line．We wish to establish relations with you. B: Your desire coincides with ours. A: Concerning our financial position, credit standing and trade reputation, you may refer to Bank of Hong Kong, or to our local Chamber of Commerce or inquiry agencies. B: Thank you for your information．As you know, our corporation is a state-owned one．We always trade with foreign countries on the basis of equality and mutual benefit．Establishing business relations between us will be to our mutual benefit．I have no doubt that it will bring about closer ties between us. A: That sounds interesting．I'll send a fax home．As soon as I receive a definite answer, I'll make a specific inquiry. B: We'll then make an offer as soon as possible．I hope a lot of business will be conducted between us. A: So do I.
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培训实施的前提条件是（）
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案例：某学校开设了“摄影/摄像”模块教学，但在进行到摄像教学内容时，由于学校硬件资源不足，摄像部分的教学实施遇到了困难，教师为了让学生能感受到动态影像的魅力，想到借用数码相机来代替，学生先选题后写出了一个短小的脚本，表演前把数码相机用脚架固定好，由担任导演角色的学生控制表演和拍摄，在表演的过程中，每隔一段时间（大约一两秒钟）就拍摄一张照片，拍完后把照片输入到电脑，用软件按照一定的时间间隔连续播放照片，输出后就成为一段具有动态效果的影片。当然无法将摄像的各种手法都完全运用，但由于是固定位置的非连续拍摄，多数学生可以利用这一特性大做文章，例如：用前后遮挡法、位置重叠法等，产生类似于摄像但又不同于摄像的独特视觉效果，学生的学习积极性非常高，教学取得了满意的效果。问题：根据案例及新课程标准谈谈你对课程资源开发的看法。
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6502电气集中10线断线时不影响信号开放。
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一般情况下，邮购公司比百货公司的盈亏平衡点低，这主要是因为（）。
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关于帕金森病下列说法错误的是（）
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不属于英美批评提出的语言分析概念是（）。