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
—By the way, have you got ______ e-mail address? —Oh, yes, it is simonland @ hotmail.com.
#32425
A
a
B
an
C
the
D
/
Zhang Lili, _________ good teacher, is regarded as _________ most beautiful teacher at present.
#34075
A
an, a
B
a, the
C
/, the
D
the, a
. A: Bob, you look so happy today!B: Well, I got _____________“A ”on my English test．
#34190
A
an
B
a
C
the
D
/
We all believe _______,because she is ______honest girl.
#32699
A
the words she says; a
B
what she says; an
C
what does she say; a
D
she says what; an