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[主观题]
Sometimes, but not often, something () has been produced unexpectedly by good luck.
A. favorable
B. splendid
C. essential
D. worthwhile
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A. favorable
B. splendid
C. essential
D. worthwhile
A.错误
B.正确
A.executive
B.extensive
C.effective
D.efficient
t is sometimes useful ___________ it forces people to test the relative merits of their attitudes and behaviors.
A) by which B) to which
C) in that D) so that
A.to understand oneself
B.to make oneself understood
C.for one to understand oneself
D.understanding oneself
A.正确
B.错误