请教大全 - 748

10.   The fear of rabies is well founded: few people are known to recover from the disease after the appearance of the clinical symptoms.

(A) few people are known to recover from the disease after the appearance of the clinical symptoms

(B) few people are known to have recovered from the disease once the clinical symptoms have appeared

(C) there are few known people who have recovered from the disease once the clinical symptoms have appeared

(D) after the clinical symptoms appear, there are few known people who have recovered from the disease

(E) recovery from the disease is known for only a few people after the clinical symptoms appear

A 选项为什么错误呢？

10.   The fear of rabies is well founded: few people are known to recover from the disease after the appearance of the clinical symptoms.

(A) few people are known to recover from the disease after the appearance of the clinical symptoms

(B) few people are known to have recovered from the disease once the clinical symptoms have appeared

(C) there are few known people who have recovered from the disease once the clinical symptoms have appeared

(D) after the clinical symptoms appear, there are few known people who have recovered from the disease

(E) recovery from the disease is known for only a few people after the clinical symptoms appear

A 选项为什么错误呢？

时态不对呀，要用完成时。