GWD30-20

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.

1. of which type there are 200,000 worldwide, can interfere with pacemakers and that
2. of which, worldwide, there are 200,000 of that type, and which can interfere with pacemakers, and
3. of which type there are 200,000 worldwide, they can interfere with pacemakers and
4. 200,000 of which type exist worldwide, interfering with pacemakers, and
5. 200,000 of that type existing worldwide and can interfere with pacemakers, and

answer is D

My answer is A, free for discussion.

小王老师说，there be 出现……基本错……

我也觉得D比较好 不能of that 只能 of which所以E可以排除

sorry, 你的理由我不认同。

A中and that阐述并列，就很好。

其次，D中interfering with pacemakers做什么？

说there be一定错，已经被证明是没有实际推广价值的。

嗯，看着看着

确实觉得C不对

但是前面我还是觉得there be 不简洁

同意你，A吧

A选项确实太罗嗦，暂且不考虑there be的问题，D的说法更符合规范：恢复之后便可看出200000 type of which exist worldwide，A读起来挺奇怪。interfering with pacemakers这句话是修饰exist的,也就是修饰magnetic fields的.这里没有对称我认为是合理的,因为根据逻辑意思,and this interaction can bring on ....这句话不是announce的内容,而是解释interaction的,所以没办法和前面并列.
我想把这句话翻译出来就更清楚了

研究人员声明:由厂商制造的安全监视系统所放射出的磁场当中200,000种磁场都在全世界范围内存在,并干扰脉冲设备,这种干扰可以带来心脏跳动消失或者不规律,恶心,呼吸不畅,头晕甚至晕厥

不敢苟同，这是句子碎片(framentation)，因为它前面的只是一个同位语。

I support A.

D is absolutely wrong. “the magnetic fields emitted by one manufacturer’s security surveillance system interfering with pacemakers” – 谓语呢?

There be在OG里做正确答案的举不盛举啊. OG107, OG89, OG225. 不要相信老师的, 一切根据OG.

a

d 不能形成并列

.