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
外语
In the month of September, in Britain, you may see large numbers of birds【C1】______ on roofs and telegraph wires. These birds ar
In the month of September, in Britain, you may see large numbers of birds【C1】______ on roofs and telegraph wires. These birds ar
admin
2012-08-10
41
问题
In the month of September, in Britain, you may see large numbers of birds【C1】______ on roofs and telegraph wires. These birds are swallows. They are【C2】______. together because, very soon, they will be flying【C3】______ to much warmer lands, where they will find【C4】______the small flying insects on which they【C5】______. There are no such insects【C6】______in Britain during the winter; it is【C7】______cold for them.
The swallows settle, fly off, swoop, and【C8】______again. This they do many times, for they are making short【C9】______ flights in order to be fit for the long journey【C10】______them.
【C11】______of these migrating birds leave Britain in the autumn. They fly【C12】______for hundreds of miles【C13】______they reach the warm lands of Africa. But not all the birds get there, for many of them perish in the stormy weather they meet with【C14】______.
In the spring of the following year they【C15】______the long and tiring journey back to Britain. They return to the identical barn or tree in the【C16】______district which they had left the【C17】______autumn. How do these birds find their【C18】______there and back over such vast distances? Nobody knows exactly【C19】______, but it has something to do【C20】______ winds and air currents.
【C19】
选项
A、why
B、when
C、how
D、what
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/jJ57777K
0
大学英语四级
相关试题推荐
Languageislearnedprimarilythroughcommunicationwithotherpeople.Researchshowsthatthemorecommunicationchildren【S1】__
A、HowJohnMiltonWroteParadiseLost.B、HowJohnMiltonBecameaPoet.C、HowJohnMiltonStudiedLatin.D、HowJohnMiltonBecam
Theworkplaceforolderadultsisbecomingadynamicspaceratherthanaunidirectionaljourneyleadingtoretirement.Thenewo
OnemajorreasonforGermany’shighunemploymentandtheevidentweaknessofbusinessinvestmentisthenatureofthetaxsystem
A、Manypeoplearesurprisedatthat.B、Thisisonlyawayforhusbandandwifetoshowmutualrespect.C、Thisisaprogresstowa
HowtoMakeaGoodImpressionResearchshowsthatwestarttomakeupourmindsaboutpeoplewithinsevensecondsofmeeting
HowAdvertisementIsDoneThelanguageoftheadvertiserWhenwechooseawordwedomorethangiveinformation;wealsoexp
Advertisingisaformofselling.Forthousandsofyearstherehavebeenindividualswhohavetriedto【C1】______otherstobuyth
Ourconclusionisbasedonallavailableknowledge,___________(而不是基于猜测和想像).
随机试题
下列选项中,适合作为统整《中国山水画创作》单元内容的“大观念”的是()。
信托公司可以开展对外担保业务,但对外担保金额不得超过其净资产的()
男孩,9岁,奔跑时跌倒,右肘着地摔伤1小时。查体:右肘肿胀,功能受限,异常活动,肘后三角正常,手部青紫、皮温低,拇指对掌功能障碍。最常见的晚期并发症是
项目生命周期具有()等阶段。
()规划是指为了使家庭财产及其产生的收益在家庭成员之间实现合理的分配而做的财务规划。
税务机关对单价()元以下的其他生活用品,不采取税收保全措施和强制执行措施。
市场失灵主要表现在()等方面。
下列金融市场中,属于货币市场的是()。
某单位有负责网络、文秘以及后勤的三名办公人员:文珊、孔瑞和姚薇,为了培养年轻干部,领导决定她们三人在这三个岗位之间实行轮岗,并将她们原来的工作间110室、111室和112室也进行了轮换。结果,原本负责后勤的文珊接替了孔瑞的文秘工作,由110室调到了111室
信息时代里的企业就像一个完整的人,组织如骨骼,资金如血液,信息如神经。信息流是生命线,信息系统是神经系统,顾客需求是刺激源。在统一的数字神经系统下,从决策者到管理者再到执行者,从人到机器,如果信息可以一路顺畅,整个企业就能用一个大脑思考。这颗数字大脑不仅要
最新回复
(
0
)