There is no ____________ in taste between frozen and fresh fish.
A. sensitive
B. comparison
C. deficiency
D. abrupt
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He had maintained a far from _________ diet, only to shed few pounds.
A. nurture
B. rigid
C. elaborate
D. weight
Despite his misfortunes, his faith and optimism remained __________.
A. throw
B. magnetic
C. operat
D. intact
It is ideal for a government to make its operations as ____________ as possible.
A. point
B. mention
C. transparent
D. verbal
设a,b,c是文法的非终结符且满足有限关系a=·b和b=·c,则()。··
A. 必有a=·c
B. 必有c=·a
C. 必有b=·a
D. A~C都不一定成立