题目内容
（请给出正确答案）
A.unlikely
B.unfriendly
C.forbidden
D.vulnerable
如果结果不匹配，请 联系老师 获取答案
更多“Scientists have discovered man…”相关的问题
Even talented scientists have no way to precisely forecast the future. (英译汉)
The scientists have made an______study of the viruses that cause the disease.
A．exhausted
B．exhausting
C．exhaustive
D．exhaustion
Scientists have done countless experiments to show that praise is far ______ (effective) than criticism in improving human behavior．
The article does not mention whether the scientists' experiments with dogs have ______.
A．benefited animals other than dogs
B．served man
C．helped other dogs
D．contributed to medical knowledge
Scientists will have to___new approaches of increasing the world’s power supply.
A.put up with
B.catch up with
C.stand up for
D.come up with
A.stick to
B.come up with
C.carry out
D.lead to
A.lead to
B.come up with
C.carry out
D.stick to
A.Since the beginning
B.have become
C.in
D.the way how
