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【单选题】
Though it is sounds a bit too dear, but it is worth _________.A.
being bought
B.
buying
C.
to buy
D.
buying it
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【简答题】They didn't dare to leave the train lest they be attacked by wolves.
【单选题】下列关于DNA单链结合蛋白(SSB)的叙述哪一个是错误的
A.
大肠杆菌中的SSB与DNA单链结合时具有协同作用
B.
它与解开的DNA单链结合，防止DNA复性
C.
它帮助DNA聚合酶识别已解开的DNA单链模板
D.
它与解开的DNA单链结合防止核酸水解酶的作用
【单选题】下列有关异源三聚体G蛋白的叙述，其中哪项是错误的?( )
A.
G蛋白可与GTP或GDP结合
B.
G蛋白具有GTP酶的活性
C.
G蛋白的三个亚基聚合并与GTP结合的才有活性
D.
G蛋白由3个亚基(α、β、γ)组成
【单选题】_____ against the coming hurricane, they didn't dare leave home.
A.
Warned
B.
Hacing warned
C.
To warn
D.
Warn
【单选题】They didn't dare to go back into the high-rise_______the earthquake would come again any minute.
A.
on the grounds that
B.
by the reason that
C.
for fear that
D.
in as much as
【单选题】____ against the coming hurricane, they didn't dare leave home.
A.
Warned
B.
Having warned
C.
To warn
D.
Warn
【简答题】based on "I wandered Lonely as a clud" by wordsworth and "Ode on a Grecian Urn" by John Keats, discuss the main features of the Romantic poetry.
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