I listened to Professor Chen-Ning Franklin Yang’s lecture about his study and physics, but I failed to get its key ______ .
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A
words
B
notes
C
messages
D
points
推荐题目
Big Ben is a famous _______in London.
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A
statue
B
museum
C
park
D
clock
--What’s that?  --It’s an________.
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A
ruler
B
quilt
C
orange
D
pen
There aren’t any___ between them.
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A
different
B
difference
C
more different
D
differences
—What vegetables do you like?—______.
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A
Ice cream
B
Hamburgers
C
Carrots and broccoli
D
Bananas