首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
公务员
Violent ocean storms in the northern part of the world usually develop in late summer or autumn near the equator. When they happ
Violent ocean storms in the northern part of the world usually develop in late summer or autumn near the equator. When they happ
admin
2013-04-25
49
问题
Violent ocean storms in the northern part of the world usually develop in late summer or autumn near the equator. When they happen over the northwestern Pacific Ocean, the storms are called typhoons. And, in the eastern Pacific and the Atlantic Ocean, they are called hurricanes. South of the equator, the winds flow in the same direction as the hands on a clock. North of the equator, they flow counter - clockwise.
Storms can result when the air temperature in one area is different from that of another. Warmer air rises and cooler air falls. These movements create a difference in the pressure of the atmosphere, If the pressure changes over a large area, winds start to blow in a huge circle. High - pressure air is pulled into a low - pressure center. Storms can get stronger and stronger as they move over warm ocean waters. Up to 50 centimeters of rain can fall. Some storms have produced more than 150 centimeters of rain.
The scale is divided into 5 categories. A category one storm has winds of about 120 to 150 kilometers an hour. It can damage trees and lightweight structures. Wind speeds in a category two hurricane can reach close to 180 kilometers an hour. These storms are often powerful enough to break windaws or blow the roof off a house. Winds between about 180 and 250 kilometers an hour represent categories three and four. Anything even more powerful is a category five hurricane. The researchers say that about 35% of all hurricanes in the past ten years were category four or five.
Weather scientists call hurricanes by names to make clear just which storm they are talking about, especially when two or more take place at the same time. They say using short names is especially important when exchanging storm information among weather stations and ships at sea. Weather scientists used the names of their girlfriends or wives for storms during World War Two. The United States weather service started officially using women’s names for storms in 1953. In 1978, realizing the sex prejudice of such names, it began including men’s names as well.
If it makes some of the houses of a coast village fall down, the hurricane is category _____at least.
选项
A、2
B、5
C、4
D、3
答案
D
解析
由“Wind speeds in a category two hurricane can reach close to 180 kilometers an hour.These storms are often powerful enough to break windows or blow the roof off a house.Winds between about 180 and 250 kilometers an hour represent categories three and four”可知答案为D。
转载请注明原文地址:https://jikaoti.com/ti/DYO4FFFM
本试题收录于:
小学英语题库教师公开招聘分类
0
小学英语
教师公开招聘
相关试题推荐
根据短文内容,从方框中选出能填入空白处的最佳选项SayingGoodbyeManypeoplewerewaitingforthetrain.Somewerereadingnewspapersandsomewere
Duringthesummerholiday,IthinkIshoulddosomething61.______meaningfulinsteadtouring.SoIgotajo
Duringthesummerholiday,IthinkIshoulddosomething61.______meaningfulinsteadtouring.SoIgotajo
Duringthesummerholiday,IthinkIshoulddosomething61.______meaningfulinsteadtouring.SoIgotajo
(PengLanandLiuQiangaretalkingabouttheirsummervacationplansathome.)PengLan=PLiuQiang=LP:Hey,
(PengLanandLiuQiangaretalkingabouttheirsummervacationplansathome.)PengLan=PLiuQiang=LP:Hey,
(PengLanandLiuQiangaretalkingabouttheirsummervacationplansathome.)PengLan=PLiuQiang=LP:Hey,LiuQiang.Wh
(PengLanandLiuQiangaretalkingabouttheirsummervacationplansathome.)PengLan=PLiuQiang=LP:Hey,LiuQiang.Wh
随机试题
舌绝不能言,足废不能用,口干不欲饮,脉沉细弱者,治宜选用()(1994年第54题)
开式喷头是无释放机构的洒水喷头,其喷水口保持常开状态。()
下列哪些物质可通过逆向轴浆流动而被运输?
关于术前用药吗啡的叙述下列哪项不正确
兴达公司共有职工400余人,该公司职工商定就职工的劳动报酬、安全卫生条件和保险福利等事项和兴达公司签订集体合同,则下列说法符合法律规定的是:()
某公司每年需要甲材料10000件,每次订货成本为400元,每件材料的年储存成本为2元,该种材料的采购价为20元/件。假设一次订货量在4000件以上可获2%的折扣,在5000件以上可获5%的折扣。要求:计算经济进货批量。
某企业销售产品每件220元,若客户购买100件(含100件)以上,每件可得到20元的商业折扣。某客户2013年12月10日购买该企业产品100件,按规定现金折扣条件为2/10、1/20、n/30。适用的增值税税率为17%。该企业于2013年12月26日收到
为提高司法公信力,保证法院、检察院独立行使审判权与检察权,党的十八届四中全会提出的具体措施有()。
太平天国初步建立政权的标志是()。
已知二次型f(x1,x2,…,xn)=(x1+a1x2)2+(x2+a2x3)2+…+(xn+anx1)2.a1,a2,…,an满足什么条件时f(x1,x2,…,xn)正定?
最新回复
(
0
)