题目

关于如图所示情景，下列说法中正确的是（） A . 图甲 ：此图是电动机的原理图 B . 图乙 ：闭合开关通电螺线管右端为N极 C . 图丙 ：两孔插座和三孔插座的作用是完全相同的 D . 图丁 ：不能用湿手摸或湿布擦与电源相连接的用电器 答案：D根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Ebola is a dangerous virus that can cause people to get very sick and even die. The virus is causing the biggest problems in western Africa, where it has spread quickly.1. But it can get worse and cause life-threatening symptoms, such as bleeding and trouble breathing.2. Ebola does not spread like colds or the flu because it does not float through the air. Ebola also doesn’t spread through food or water, like some other viruses. Instead, Ebola spreads when someone touches the body fluids (such as spit) of a sick person.3. An outbreak is when many people are getting sick with the same illness around the same time. You may have heard of a flu outbreak, which is when lots of people get sick from the same types of flu virus. When an outbreak happens because of a virus, more people could get sick because there is a lot of that virus around.Where did Ebola come from?Scientists aren’t sure how the first person gets Ebola at the start of an outbreak. 4.. Tropical animals in Africa believed to carry the virus include great apes, chimpanzees, gorillas, monkeys, fruit bats, porcupines, and forest antelope.What do kids need to do about Ebola?Ebola is making many people sick in Africa, but no matter where you live, it’s always a good idea to wash your hands well and often. 5.A. What is Ebola?B. What is an outbreak?C. How do people catch Ebola?D. Ebola symptoms can start with fever and headache, kind of like the flu.E. But they think that people may pick up the virus by touching or eating infected animals.F. It’s very important that infected people get treatment right away.G. Keeping your hands clean can help protect you from common illnesses like colds and the flu.