His test results are not very . He does well one week and badly the next.A. invariableB.

问题补充：

His test results are not very . He does well one week and badly the next.

A. invariable

B. consequent

C. continuous

D. consistent

答案：

A. invariable

B. consequent

C. continuous

(答案→)D. consistent

解析：consistent 1)始终如一，前后一致：He is not consistent in his statements.(他的话并不前后一致。) 2)与......一致：The story is not consistent with the facts. What you say is not consistent with what you do.