The reason why birds don’t get lost on long flight . Experiments showed that .

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问题 The reason why birds don’t get lost on long flight ______.
Experiments showed that ______.

选项 A、birds are likely to get lost if there aren’t man-made stars.
B、day-flying birds depend on the sun while night-flying birds depend on the stars
C、birds depend on the sun to guide them
D、birds depend on the stars to guide them

答案B

解析

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本试题收录于：大学英语三级B级题库大学英语三级分类

大学英语三级B级

大学英语三级

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The reason why birds don’t get lost on long flight ______. Experiments showed that ______.

大学英语三级B级

大学英语三级

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Writeaboutthefollowingtopic:Inrecentyears,travelhasbecomeacommontopicinourdailylife.However,itcausessomepr

Howmenfirstlearnedtoinventwordsisunknown.Allwereallyknowisthatmen,unlikeanimals,somehowinventedcertainsound

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Thelinkbetweenhealthandincomeseemsprettyuncontroversial.【C1】______all,healthypeoplecanworklongerandharderthansi

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