栓子进入脑动脉后，向远端移行至比栓子直径小的动脉时，就发生血管阻塞，可产生以下三种变化：（）、（）及（）。

[单选题]正常局部脑血流SPECT图像的主要特征为（）。

[单选题]下列哪一项属于影响胚胎分化的内在因素？（）

[单选题]患者女，62岁。反复咳嗽、痰中带血伴低热1月余。查体：气管向左移位，左肺可闻及细湿啰音。为明确诊断，首选的检查是（）

[判断题]病房组织是住院诊疗的基层单位，处于运行系统的中心地位。

[单选题]现行的集装箱国际标准为第1系列共（）种。

[单选题]施工作业噪声传至以居住、文教机关为主的区域的夜间噪声声级卫生限值为（）dB。

[单选题]对于愤怒的病人，护士正确的做法是（）。

[单选题]检查人体必需脂肪酸是否缺乏的灵敏指标是血中的（　　）。

[单选题]污泥因含水率不同而呈现不同的形态，污泥含水率低于60%时则呈（）。

[问答题]Directions:You and your friend have just finished a course and you want to arrange a party. You’ve had a meeting and made a list of your requirements. You’ve heard that your friends, Anna and Jack, who attend a nearby school, had a party on a boat last term and you want to ask them all about it. Read your notes carefully. Then write a letter to Anna and Jack telling them what you want to do and asking for information and advice. Remember to write the letter in no less than 100 words on the Answer Sheet.