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【单选题】
( )是近代画坛罕见的多面手,他1940年赴敦煌临摹壁画。A.
；
B.
；
C.
孖；
D.
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举一反三
【单选题】Listen to the following excerpt and identify the title and composer of this excerpt .
A.
Arvo Pärt: My Heart's in the Highlands
B.
Alban Berg: Wozzeck
C.
Boulez: Pli selon pli
D.
John Cage: Aria
【单选题】Identify the sentence that uses the correct verb tense or tenses.
A.
We been studying Spanish all day long.
B.
We be studying Spanish for our test tomorrow.
C.
We have been studying Spanish since early this morning.
D.
We has been studying Spanish.
【简答题】香豆素类化合物具有( )结构,故异羟肟酸铁反应显色。
【单选题】– Who will be sent to meet the head? － I’ve_________a car to pick him up at the airport.A．a
A.
8. – Who will be sent to meet the head? - I’ve_________a car to pick him up at the airport. A．arranged for
B.
arranged
C.
arranged with
D.
arranged of
【单选题】当 f 1 =0.5 时,所得共聚物中序列分布最窄的条件 ( )
A.
r 1 =1, r 2 =1
B.
r 1 =1, r 2 =0.5
C.
r 1 =0.01, r 2 =0.02
D.
r 1 =10, r 2 =0.1
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