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
考研
Fueled by weather, wind, and dry undergrowth, uncontrolled wildfires can bum acres of land—and consume everything in their way—i
Fueled by weather, wind, and dry undergrowth, uncontrolled wildfires can bum acres of land—and consume everything in their way—i
admin
2010-01-17
79
问题
Fueled by weather, wind, and dry undergrowth, uncontrolled wildfires can bum acres of land—and consume everything in their way—in mere minutes.
【C1】______, more than 100,000 wildfires clear 4 million to 5 million acres of land in the U. S. every year. A wildfire moves at speeds of up to 23 kilometers an hour, consuming everything— trees, bushes, homes, even humans—in its【C2】______.
There are three conditions that need to be【C3】______in order for a wildfire to burn: fuel, oxygen, and a heat source. Fuel is any material【C4】______a fire that will burn quickly and easily, including trees, grasses, bushes, even homes. Air supplies the oxygen a fire【C5】______to burn. Heat sources help spark the wildfire and bring fuel to【C6】______hot enough to start burning. Lightning, burning campfires or cigarettes, hot winds, and even the sun can all provide【C7】______heat to spark a wildfire.
【C8】______often harmful and destructive to humans, naturally occurring wildfires play a positive role in nature. They【C9】______nutrients to the soil by burning dead or decaying matter. They remove diseased plants and harmful insects from a forest ecosystem ( 生态系统 ). And by burning【C10】______thick trees and bushes, wildfires allow sunlight to reach the forest floor, enabling a new generation of young plants to grow.
【C1】
选项
A、After all
B、Above all
C、In sum
D、On average
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/MAYi777K
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
下列选项中,属于宪法部门法的有()。
下列选项中,不属于钦定宪法的是()。
Accordingtothespeaker,theproblemwith"insidervolumes"isthatthey______.Accordingtothespeaker,"MyExperiencesin
WeatherForecastThefollowingforecastshowsforthelistedcitiestheprojectedweatherconditionsandtheexpectedrange
A:Hello.CustomerService.WhatcanIdoforyou?B:Yes.There’ssomethingwrongwithmyelectricoven.Itdoesn’tworknow.A
Iwantanassistantwith______littleknowledgeofGermanand______experienceofofficeroutine.
Wewerelostatsea,atthe______ofwindandweather.
SpeakerA:Areyoufeelingbetternow?SpeakerB:______.
Istheresomethingastruth?Foragoodmanycenturies"thesearchfortruth"hasbeen【B1】thenoblestactivityofthehumanmind
Smoking,whichmaybeapleasureforsomepeople,isaserioussourceofdiscomfortfortheirfellows.Medicalauthoritiesexpre
随机试题
关于用人单位向劳动者支付报酬的说法,正确的是()。
根据弗洛伊德对心理发展阶段的划分,6~12岁的儿童处于()
葡萄球菌的检测方法中适用于检查葡萄球菌数不小于10CFU/g(mL)的食品的是非选择性增菌法。
Don’t______yourworkhalf-done.You’resupposedtofinishitalone.
温脾汤的组成药物中不含
X线束入射于肢体曝光面积的大小,称为
设函数f(xx)在(-∞,+∞)上是奇函数,且在(0,+∞)内有f(x)<0,f’(x)>0,则在(∞,+∞)内必有()。
工程质量问题处理之后,监理工程师应写出质量问题处理报告,报送()存档备案。
数据字典就是用来定义数据流图中各个成分的具体含义。()
没有绝对安全的环境,每个环境都有一定程度的漏洞和风险。风险是指某种破坏或损失发生的可能性,风险管理是指识别、评估、降低风险到可以接受的程度。下列选项中,()不是风险管理的内容。
最新回复
(
0
)