单选题 Young John showed no consistency when he did excellent work the first part of the year and very poor work after that.

A、 state of keeping to the same course of action
B、 right qualifications to do a job
C、 ability to cope With one's work
D、 great amount of accumulated experience

【正确答案】 A

【答案解析】state of keeping to the same course of action连贯性；right qualifications to do a job完成某一工作的适当资格；ability to cope With one's work完成工作的能力；great amount of accumulated experience大量的累积工作经验。