the help of experienced career instructors, this type of job-hunting training to be very efficient.
A. By; has proved
B. With; has proved
C. Under; is proving
D. With; is proved
网友回答
A. By; has proved
B. With; has proved
C. Under; is proving
D. With; is proved
解析：
本题主要考查固定搭配的识记及动词的语态。根据help的搭配要求，介词须用with，从而排除选项A. C；动词prove表示事物的性质时，为不及物动词，不用被动形式，于是本题的正确答案为B。