首页
登录
职称英语
[originaltext] I am glad that all the members of our zoology class could com
[originaltext] I am glad that all the members of our zoology class could com
游客
2023-08-31
81
管理
问题
I am glad that all the members of our zoology class could come down to the zoo today to continue our animal adaptation. As you know, some animals are able to move between domestic and wild environments with relatively little difficulty. The first example of this that we will see here at the zoo is the wild burro. As you are probably aware, burros are relatives of the horse. Wild burros in the United States are descendants of the pack animals brought here three centuries ago by Spanish explorers, and these pack burros were in turn the descendants of wild African asses.
About 100 years ago, gold prospectors came to the mountains and deserts of the western United States. Most of the prospectors were accompanied by steadfast companions—burros. These animals were used along with the mule train that served the many mining operations. But when gold and silver mining died out, many of the prospectors turned their burros loose, they joined wild burros that were already roaming the hills and canyons who were the descendants of those brought by the Spanish. The prospectors knew that their burros were hardy animals, completely able to take care of themselves in the wild. The fact that there are over 11 thousand wild burros living in the western states today testifies to their great adaptive ability.
选项
A、To work in mining operations.
B、To carry scientific supplies.
C、To cross the North American continent.
D、To help cultivate the frontier.
答案
A
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2973081.html
相关试题推荐
[originaltext]Botany,thestudyofplants,occupiesapeculiarpositionin
[originaltext]Botany,thestudyofplants,occupiesapeculiarpositionin
[originaltext]Thecostisgoingupforjustabouteverything,andcolleget
[originaltext]W:Howareyoudoing,Christopher?M:Tobehonest,I’mreallyfe
[originaltext]W:Howareyoudoing,Christopher?M:Tobehonest,I’mreallyfe
[originaltext]M:I’mplanningtobuyahouse,andI’dliketofindoutabouta
[originaltext]M:Whyareyouleavingsoearly?Themoviedoesn’tstarttillsev
[originaltext]M:Whyareyouleavingsoearly?Themoviedoesn’tstarttillsev
[originaltext]M:Whyareyouleavingsoearly?Themoviedoesn’tstarttillsev
[originaltext]M:Whyareyouleavingsoearly?Themoviedoesn’tstarttillsev
随机试题
Whatwillbeusedtopowercarsinthenextfewdecades?[originaltext]Inth
Americansbelievetimeisalimitedresource;theytrytoconserveandmana
Whichfonmswasthebasisforphotography?[br][originaltext]Thecamerais
根据《关于委托第三方机构参与预算绩效管理的指导意见》(财预[2021]6号
宜空腹服的是A.滋补药 B.解表药 C.安神药 D.外用药 E.驱虫、攻
从血液中分离到的最常见的病原菌,可引起出血性大肠炎,并能引起致死性并发症如溶血性
某混凝土单筋矩形截面简支梁,截面尺寸和配筋如图所示,采用C30混凝土,HRB33
社会策划模式假设在一个复杂的社会环境下,要达到社区变迁,?必须依靠()。A.居
再贴现、国债买卖与储备占款属于中央银行的()业务。A.资产 B.负债 C.
根据《铁路交通运输事故应急救援和调查处理条例),铁路交通运输事故的调查期限自()
最新回复
(
0
)