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嗯og13的第17题还没有很懂。。。不知是不是自己钻牛角尖的缘故?
问题贴出来先:
17. Sunspots, vortices of gas associated with strong electromagetic 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. 如原题
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
OG对c,d的解释都是although引导的从句没有subject,但是我在想有没有省略的可能呢?就是c:appear on the surface of the Sun as dark spots although (they are)never sighted at
如果不能省略的话,那og13,14题又怎么解释呢?
贴出14题的正确句子吧~Rising inventories, if not accompanied by corresponding increases in sales, can lead to production cutbacks that would hamper ecconomic growth.
这里面if引导的句子也是省略了主语的吧?为什么这个又是正确的呢?
求解答语法小白疑问~谢谢~ |
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