请说出防风的来源、主产地、药用部位、主要成分、鉴别特征及功效。最明显的鉴别特征，习称 发布时间：2017-06-02 18:40 │ 来源：www.tikuol.com 题型：单项选择题 案例分析题 问题： 请说出防风的来源、主产地、药用部位、主要成分、鉴别特征及功效。最明显的鉴别特征，习称（）A.菊花心 B.过桥 C.云绵花纹 D.怀中抱月 E.筋脉纹 F.珍珠疙瘩
题型：单项选择题 案例分析题 阅读理解。 Here is a page from a magazine named Future. Read the following information about things that may happen in ten years. ACars will run on solar power or electricity and will be much cleaner. They will be much safer. For example, if you are too close to another car or if you are driving dangerously, your car will slow down by itself. BBecause there won't be any spare land, new cities will have to be built in the sea. Some cities on water will have two levels. People will live on the upper level; the lower level will be used for traffic,shops and factories. CBiotechnology (生物工艺学) will make food better and healthier. Plants that are not affected byinsects or illnesses will be developed. The taste of fruits and vegetables will be better and food will be kept longer. DNew technology will be used to make TVs that are only 5cm thick. They will have pictures that are as clear as photos. Electrical appliances (设备) will be quieter and will be controlled by computers; they will also use 50% less power. EMany new ways to cure illnesses will be successful by using products of genetic engineering. Cureswill be found for the flu and the common cold. However, some new illnesses will appear. 根据短文内容完成句子。 1. Cars using solar power or electricity will cause accidents and pollution. 2. People will be able to live in the new cities in the . 3. Biotechnology will make the fruits and vegetables and keep the food . 4. Electrical appliances will be and will be controlled by . 5. Genetic engineering can help doctors to cure . 查看答案
题型：单项选择题 案例分析题 . If only I ________ how to operate an electronic computer as you do. A．had knownB．would knowC．should knowD．knew 查看答案
题型：单项选择题 案例分析题 电容液位计出现无显示的故障，分析可能原因及处理方法（）。A、电源故障；检查供电回路与接地B、输入信号线断；检查信号线与接地C、检测元件损坏；检查传感器及元器件D、差压单元损坏；更换差压单元 查看答案