OG121-SC-140 低级问题求指点...T^T
原题如下： Rock samples taken from the remains of an asteroid
about twice the size of the 6-mile-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.
(A) has been dated to be 3.47 billion years old and
thus is
(B) has been dated at 3.47 billion years old and thus
(C) have been dated to be 3.47 billion years old and
thus are
(D) have been dated as being 3.47 billion years old
and thus
(E) have been dated at 3.47 billion years old and
thus are
正确答案是E，我认可...我的问题是关于 thus 这个东西...
OG后面给的解释是说 and thus 后面要连接动词（针对D选项，OG的解释原文是：the conjunction and thus
should be followed by a verb），如果这样的话应该就是动词并列吧？ and thus 后面的 are 和前面的have been 并列？
但是我看李希强 的PDF上写“and前后都是句子”，但是我查字典发现thus是副词啊...那么后面的句子不就没有主语了么...然后我就困惑了...
问题实在太低级了，而且还说得这么啰嗦...希望大牛牛能看懂...thus我一直都搞不清，一直看材料说要“闪光识别”，也搞不清要识别什么...唉唉唉...求指导T^T |
