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【单选题】
The joint sequence between exons and introns is ( )A.
5′AG‑CT3′
B.
5′GT‑AG 3′
C.
5′AC‑GT3′
D.
5′AG‑GT3′
E.
5′GU‑AG3′
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举一反三
【单选题】How did Sarah seem to feel about the ghosts?
A.
The house was haunted because of the way the family had achieved its wealth.
B.
The house was not really haunted, but stories about ghosts helped the house to become famous.
C.
The house may have been haunted, but she did not understand why.
D.
She made up stories about the house being haunted to get sympathy.
【简答题】A．The driver was drunk. B．The house was hit. C．A man was just crossing the street. D．The traffic light was red.
【简答题】A．The corridor was widened. B．The house was rewired. C．The smoke alarms were installed. D．The front door can be opened automatically.
【单选题】In the sentence 'When the policeman arrived, the house was found broken into', the italicized part is a(n)______.
A.
object complement
B.
subjective complement
C.
object
D.
appositive
【简答题】The house was quiet at 5 am and Tim’s mother was asleep. Only the sound of the big freezer broke the quiet. He’d dreamt of the cave last night. The purring（轻微颤动声）of the freezer had been the sea. Tim p...
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