363.If this kind of fish becomes ______,future generations may never taste it at all.
A.minimum
B.short
C.seldom
D.scarce
364.I have worked with him for some time and have found that he is _____ than John.
A.more efficiently a worker
B.a more efficient worker
C.more an efficient worker
D.a worker more efficiently
363.答案是D;
minimum 最小限度的,最小值;scarce 罕见的,稀有的。
364.答案是B;
根据句式,形容词修饰名词;此外由下文than John暗示应选用比较级,而efficient的比较级是more efficient,故选B。