I think you are at the end of your this time and need to turn to Pro. Smith for advice.
A. resources
B. careers
C. features
D. issues
网友回答
(答案→)A. resources
B. careers
C. features
D. issues
解析：我认为你这次智穷力竭需要求助于史密斯教授的建议。四个选项的含义分别是：A. resources资源，物力，财力，办法，智谋，B. careers事业，C. features特征，特性，D. issues问题，（报刊的）期，号，发行物，流出，这里用了词组：at the end of one's resources智穷力竭 ，所以选A。