小蓝题

0o小猪o0 · 发表于 2010-8-29 01:35:11

Sunspots,vortices of gas associated with strong electro-magnetic activity,are visible as dark spots on the surface of the Sun but have never been sighted on the Sun's poles or equator.
A are visible as dark spots on the surface of the Sun but have never been sighted on
B are visible as dark spots that never have been sighted on the surface of the Sun
C appear on the surface of the Sun as dark spots although never sighted at
D appear as dark spots on the surface of the Sun,although never having been sighted at
E appear as dark spots on the Sun's surface,which have never been sighted on
答案选C 想问为什么。C里although后面都不是句子啊怎么会选C。

myungryong · 发表于 2010-8-29 10:01:28

The correct answer is A

OG12-14

0o小猪o0 · 发表于 2010-9-1 21:46:09

E是不是错在把have never been sighted on变为伴随

花子落落 · 发表于 2010-9-2 03:29:10

e的which修饰对象不对~

0o小猪o0 · 发表于 2010-9-15 13:26:31

A里but后面也不是句子啊可以吗？

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