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【多选题】
What are the steps of checking out at the hotel ?A.
Express your intention of check-out
B.
Show your room key
C.
Confirm your bill and pay it
D.
Ask for departure service
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A.
have done
B.
be doing
C.
do
D.
does
【单选题】Both humans and cetaceans have large brains with an expanded and distinctively folded surface, the cortex. The cortex is the dominant association center of the brain, where abilities such as memory an...
A.
sophisticated
B.
sensible
C.
appropriate
D.
unprompted
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A.
元谋人
B.
北京人
C.
半坡人
D.
河姆渡人
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【单选题】With more forests being destroyed, humans have to _______ a lot from what they have done.
A.
separate
B.
suffer
C.
stop
D.
protect
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