... program is open to any U.S. citizen 18 years or older who currently lives in the country and winning applicants must agree to move withinone month of being selected.请问为什么加粗部分用了18 years or older而不是18 years old or older？谢谢！例句出处：https://www.travelandleisu...
Despite the missing N-terminal domain this Hsp90 isoform is still a
chaperone, which is in agreement with the proposed chaperone activity of the
highly conserved C-terminal domain of both Hsp90 isoforms being independent of
that associated with the N-terminus. being independent of that associated wi...
He,who had always inspired in herself a respect which almost overcame
her affection,she now saw the object of open pleasantry.哥哥在她心中一向受到尊敬，这种尊敬几乎压过了对哥哥的爱，但她现在却发现哥哥变成了别人公开打趣的对象。各位老师，请问...
...ile
this _____, the cavalry had come up.A.had
happened B.was happening C.happened D.had been happening这一题为什么选B？②Joe
_____ the piano in a few minutes.A.shall
be played B.will have been
playing C.will be playing D.will have playedin
a f...
We recognize that eradicating poverty in all its forms and dimensions, including extreme poverty.is the greatest global challenge and an indispensable requirement for sustainable development.请问including extreme poverty作为非限定性定语从句，和日常见到...
We warned our children of/about the dangers of playing in the street.Janet warned me about the water. She said it wasn't safe to drink.这两个句子中 warned 后面所接介词为什么有区别? 是warned of和warned about在意思上有什么区别吗?
The items exhibited are well worth ______, and attracted large crowds
of visitors in the past few days.A. seeing B. to be seen为什么标准答案是B呢？我理解是A are worth seeing 主动形式表被动含义呀？
A
meeting has been planned for early next year.the
attack of the French V Corps, was planned to the east of Arras, in the area of
Cambrai. 这两个句子中planned后的介词短语应该分析为时间/地点状语还是分析为结果状语或主语补足语？如果说是时间/地点状语，...
The Asuka period (飛鳥時代, Asuka jidai) was a period in the history of Japan lasting from 538 to 710 (or 592 to 645),为什么这里用a period？而不是the period 后置修饰语应该能够把这个时期修饰到确定的一个，为什么还是a
Though they were invented thousands of years ago in China，the tradition of
using chopsticks _____(remains) alive and has spread far.括号里为什么不是has remained呢？
Lim says he
actually had a late start in music, learning
to play the sheng, an ancient Chinese wind instrument, when he was 15."I
self-funded myself, twice a year, up to four months every year for three years,
coming to Beijing to study the sheng
and later composition," he says.句中两个现在分...
In spite of the love of parents for their child and their fear for her safety, they both knew that their beautiful daughter was an incredible stupid, dull little girl. 不顾父母痛爱它们的孩子，担心她的安全，他们都知道他们那个美丽的女儿是一个技巧愚笨的小女孩...
The article doesn't clearly define "helping," but I understood it as actually assisting children in the exercises or reviewingtheir work for accuracy rather than simply making sure they've completed their work. 请问上边这个句子中，understood 和assisting是怎么...