题目
A.come about
B.come up with
C.come up
D.come out
第1题
Many scientists have been probing psychological problems.
A.solving
B.exploring
C.settling
D.handling
第2题
第3题
Scientists have made great contributions()development of our human beings.
A. to
B. on
C. with
第5题
The scientists have made an______study of the viruses that cause the disease.
A.exhausted
B.exhausting
C.exhaustive
D.exhaustion
第6题
Even talented scientists have no way to precisely forecast the future. (英译汉)
第7题
A.announced
B.appeared
C.appealed
D.approached
第8题
A.With
B.Under
C.On
D.By
第9题
Scientists have done countless experiments to show that praise is far ______ (effective) than criticism in improving human behavior.
第10题
第11题
A.with
B.on
C.to
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