[問題]GWD 29-20

[peche]

Researchers have announced that the magnetic fields emitted by one manufacturer’s security surveillance system, of which type there are 200,000 worldwide, can interfere with pacemakers and that this interaction can bring on missed or irregular heartbeats, nausea, breathlessness, dizziness, and even fainting.

A)of which type there are 200,000 worldwide, can interfere with pacemakers and that

B)of which, worldwide, there are 200,000 of that type, and which can interfere with pacemakers, and

C)of which type there are 200,000 worldwide, they can interfere with pacemakers and

D)200,000 of which type exist worldwide, interfering with pacemakers, and

E)200,000 of that type existing worldwide and can interfere with pacemakers, and

這是從cd上看到的提~我沒有gwd29 啦~
我選D 答案也好像是D
但自己說布上來D那裡不錯~
所以想何大家討論討論
我覺得未劃線的部份 this interaction can...
shows that ", and" is needed
thats why B, D,E left

but B "of which, worldwide, there are" is awkward

E's first "and" is unnecessary

-open to discuss-

[michelle610]

同意你囉!!!
本題考平衡,同位語,流水句

[lunar916]

同意你囉!!!
本題考平衡,同位語,流水句

可否解釋一下哪些是平衡,是同位語,是流水句
我有點看不太懂..


this interaction can...
shows that ", and" is needed
怎麼看出來的?

[kikhorse]

這題cd上很多人討論了
答案是A

[bonus]

題號錯了喔
這題應該是GWD 30-Q20

另一帖同題討論
http://www.formosamba.com/phpBB3/viewtopic.php?t=22592