单项选择题

A．In order to elevate their nests.
B．In order to live more comfortably.
C．In order to avoid predators.
D．In order to make incubation easier.
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单项选择题
A．Teachers like Professor Johnson are rare.B．Professor Johnson has won a million dollars.C．Professor Johnson is likely to be teaching at that school.D．There are many teachers as good as Professor Johnson.
A．Teachers like Professor Johnson are rare.
B．Professor Johnson has won a million dollars.
C．Professor Johnson is likely to be teaching at that school.
D．There are many teachers as good as Professor Johnson.
填空题
______ (事业上的又一次失败没有使他气馁), but helped him wake up to the truth that the more setbacks, the more exertion of effort.
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