首页
登录
职称英语
Some people associate migration mainly with birds. Birds do travel vast dist
Some people associate migration mainly with birds. Birds do travel vast dist
游客
2025-01-31
19
管理
问题
Some people associate migration mainly with birds. Birds do travel vast distances, but mammals also migrate.
An example
is the caribou, reindeer that graze on the grassy slopes of northern Canada. When the weather turns cold, they travel south until spring. Their tracks are so well-worn that they are clearly visible from the air. Another migrating mammal is the Alaska fur seal. These seals breed only in the Pribilot Islands in the Bering Sea. The young are born in June and by September are strong enough to go with their mothers on a journey of over 3, 000 miles. Together they swim down the Pacific Coast of North America. The females and young travel as far as southern California. The males do not journey so far. They swim only to the Gulf of Alaska. In the spring, males and females all return to the islands, and there the cycle begins again. Whales are among the greatest migrators of all. The humpback and blue whales migrate thousands of miles each year from the polar seas to the tropics. Whales eat huge quantities of plankton. These are most abundant in cold polar waters. In winter, the whales move to warm waters to breed and give birth to their young. [br] Whales live on______.
选项
A、tiny plants and animals in the sea
B、the grassy slopes of northern Canada
C、their young in cold winter
D、the abundant seafood in tropic waters
答案
A
解析
细节题型。见文章倒数第三、四句:Whales eat huge quantifies of plankton(浮游生物).These are most abundant in cold polar waters.所以选项A为答案。也可用排除法:选项B指的是reindeer的习性,选项C文中未提及鲸以幼仔为生,选项D指的是tropic water,与polar water相反;所以只有选项A正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3937474.html
相关试题推荐
HowtoSelectTravelCompanionsThereisnomoreimportantdecisionorg
AlthoughitisnotdifficulttofindaplacetostayinwhiletravelinginAmeri
Asforthepeoplewhoseeyesstillfindthegreatreasonsbehindthetechnology
OldpeopleinThiengolysaytheycanrememberwhenthereweresomanytreest
WhenItellpeoplethatI’maprofessorofcommunication,theyoftenarecon
WhenItellpeoplethatI’maprofessorofcommunication,theyoftenarecon
WhenItellpeoplethatI’maprofessorofcommunication,theyoftenarecon
WhenItellpeoplethatI’maprofessorofcommunication,theyoftenarecon
WhenItellpeoplethatI’maprofessorofcommunication,theyoftenarecon
WhenItellpeoplethatI’maprofessorofcommunication,theyoftenarecon
随机试题
Athirdlikelyexplanationforinfantileamnesiainvolvesincompatibilities
LanceArmstrongisthirty-threeyearsoldandisoneofthebestathletesin
[originaltext]M:Hello,Ihaveareservationfortonight.W:Yourname,please.
文职人员招录聘用、()等工作,实行回避制度。A.考核 B.职务任免 C.岗位
能促进非血红素铁吸收的有( )。A.植酸 B.鱼肉 C.磷酸盐 D.抗酸
“儿子,给你媳妇打电话,问她回不回家吃饭?”“妈,你们两个都快半年不说话了,什么
某车间单一生产产品,车间生产面积2000平方米,单位面积有效工作时间为每日8小时
供配电系统设计的正确原则之一是()。A.变配电所应远离负荷中心; B.变配电所
逻辑图和输入A、B的波形如图所示。输出Y为“1”的时刻应是( )。 A.t1
女,35岁。脸圆,脸红,向心性肥胖1年余,患者明显乏力、口干,腹部皮肤可见紫纹,
最新回复
(
0
)