the doctors in their hospital is about one thousand and sixty percent of them women. A. A

问题补充：

the doctors in their hospital is about one thousand, and sixty percent of them women.

A. A number of; is

B. The number of; are

C. The number of; is

D. A number of; are

答案：

A. A number of; is

(答案→)B. The number of; are

C. The number of; is

D. A number of; are

解析：句意：他们医院的医生的数量大约是一千，百分之六十是女的。the number of....的数量。a number of许多。因为doctor是可数名词，所以系动词要用are。故选B.