解析 D。解析:“To predict volcanic eruptions, scientists use a variety of methods. They monitor changes in the volcano's activity, such as changes in seismic activity, gas emissions, and ground deformation.”说明科学家使用多种方法来预测火山喷发。
According to the passage,what do scientists often use to learn more about the past? A. Clothing and jewelry. B. Books and stones. C. Knives and chairs. D. People and animals. 相关知识点: 试题来源: 解析 A 解析:由首段第二句可知,科学家通常通过衣服和首饰来研究过去。 答案:A...
What instrument do scientists use to study stars? A. Telescope. B. Microscope. C. Camera. D. Computer. 相关知识点: 试题来源: 解析 A。解析:科学家用望远镜研究星星,B 选项显微镜、C 选项相机、D 选项电脑都不是主要研究星星的工具。反馈 收藏 ...
What do scientists strive to know more about in space? A. Electrons. B. Positrons. C. Dark matter. D. The speed of light. 相关知识点: 试题来源: 解析 C 正确答案:C 解析:该部分的最后提到科学家说他们认为这样的反常现象有助于破解暗物质的秘密。可知C选项正确。
Most people are aware that we need enough vitamin D to maintain healthy bones, but, over the past few years, scientists have become increasingly aware of other important roles of vitamin D. We now believe vitamin D deficiencies can result in aless efficient immune system,impaired muscle function...
D. Make jokes while communicating with humans. 相关知识点: 试题来源: 解析 2. What do scientists expect Erica to do? A. Tell funnier jokes to listeners. B. Laugh at funny people in time. C. Laugh properly at certain jokes. D. Make jokes while communicating with humans. 反馈 收藏 ...
C A)41. What do scientists advise cat owners to do? A. Keep cats inside during the bind breeding season B. Never keep cats as pets because cats will hurt their owners C. Protect small animals and birds from cats. D. Cats should always be kept at home. 相关知识点: 试题来源: ...
What do scientists do first when they edit genes? A. Cut the gene. B. Put in a new piece. C. Find the gene they want to change. D. Play games. 相关知识点: 试题来源: 解析 C。中文解析:文中说“First, they find the gene they want to change.”,所以科学家编辑基因时首先要找到他们...
What do scientists plan to do in the future? A. Reveal more secrets about the exploding ants. B. Discover if the ants can kill larger attackers. C. Tell the difference between the ants and older termites. D. Do more research on the older termites. ...
What Do Scientists Do? Scientists observe things. Our senses can help us observe what is around us. Scientists use their senses when solving science problems. They use their eyes to spot details. They use their noses to detect if something is stinky. They use their hearing, touch, and even...