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标题: GWD31-Q28 DATE TO BE OR DATE AT??? [打印本页]

作者: allen0018 时间: 2006-9-13 22:32
标题: GWD31-Q28 DATE TO BE OR DATE AT???

28. GWD31-Q28

Rock
samples taken from the remains of an asteroid about twice

the size
of the 6-nuke-wide asteroid that eradicated the dinosaurs

has
been dated to be 3.47 billion years old and thus is
evidence

of the earliest known asteroid impact on Earth.

1)
has been dated to be 3.47
billion years old and thus is

2)
has been dated at 3.47 billion
years old and thus

3)
have been dated to be
3.47billion years old and thus are

4)
have been dated as being 3.47
billion years old and thus

5)
have been dated at 3.47 billion
years old and thus are

C,OR E ???

og 上 sloth 那道用的是date at

这里的答案是date to be

作者: banks1976 时间: 2006-9-13 22:55
e,首先这个必须用have,另外只有dated at,没有dated to be

作者: Winbolin 时间: 2006-9-14 00:00
查了字典是date at....或date back to 這裡的用法應是date at

作者: sendme 时间: 2006-9-14 17:52
"date at" is idiomatical

作者: MaccMichAA 时间: 2006-10-25 12:00

...

作者: isa0709 时间: 2007-9-2 20:54

作者: lilianbubu 时间: 2009-6-29 23:48

没有date to be的说法。

E是OG12的标准答案。

作者: 伊布拉莫维琨 时间: 2009-7-26 08:35

作者: alibaba_2009 时间: 2009-8-4 08:52
up

作者: fabiozhu 时间: 2010-10-18 12:17
OG12最后一题，GMAC的官方解释是：The idiomatic way of expressing estimation of age is with the phrase 'dated at'

来自：

http://forum.chasedream.com/GMAT_SC/thread-413942-1-1.html?SearchText=gwd%20tn%2021%2028

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