This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
#33175
A
a
B
an
C
the
D
/
推荐题目
---Excuse me, is there ________ book by Mo Yan?---Yes. It’s on _________ bookshelf over there.
#33207
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a; /
B
a; the
C
/; the
D
the; a
－ Can you give me _____hand , it’s really ______hard work for me .－ Sure.
#32245
A
the; a
B
a; /
C
a ; a
D
/ ;a
If you go by train, you can have quite comfortable journey, but make sure you take fast one.
#33493
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a; a
B
the; a
C
the; the
D
不填;a
—Do you know Xidan Girl?—Of course. She played _____ guitar and sang song in the 2010 Spring Festival Gala.
#34506
A
the, the
B
the, a
C
a, the
D
/, the