打在地上的閃電極有可能是具有破壞性的，所以即使它只佔了所有閃電的百分之二十，
它仍受到許多科學家的關注。
因此作者在強調即使這種閃電只佔了一小部分，但仍受到許多科學家的關注
所以選A
※ 引述《setsuna01gn (colour)》之銘言：
: 大家好! 想請問一下 下面這一題
: Most lightning takes place within a cloud when the charge
: separation within the cloud collapses. However, as the storm
: cloud develops, the ground beneath the cloud becomes positively
: charged and lightning can take place in the form of an electrical
: discharge between the negative charge of the cloud and the
: positively charged ground. 【Lightning that strikes the ground is
: the most likely to be destructive】, so even though it represents
: only 20 percent of all lightning, it has received a lot of
: scientific attention.
: The author mark "Lighting that strikes the ground is the most likely
: to be destructive" in order to explain
: (A) this form of lightning has been investigated so much
: (B) this form of lightning is not as common as lightning within a cloud
: (C) scientists understand of this form of lightning is important
: (D) the buildup of positive charge on the ground beneath a storm cloud can
: have serious consequence
: 爬文之後有看到有人問 但我還是有疑問
: 我的問題是修辭題看的是前句
: 這題答案會是A 是因為 even though... 被挪到後面的關係嗎?
: 感謝各位大大!!