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【单选题】
--'Did you review your lessons last night?'--'No, but if I ______, I would have done better on today's test.'
A.
had reviewed my lessons
B.
will review my lessons
C.
have reviewed my lessons
D.
have done
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参考答案:
举一反三
【单选题】氨基酸是通过()与tRNA结合的
A.
糖苷键
B.
二硫键
C.
酯键
D.
氢键
【单选题】氨基酸是通过下列哪种键与tRNA结合的?
A.
糖苷键
B.
酯键
C.
酰胺键
D.
氢键
【单选题】We usually cover the Christmas trees ____ colour lights. [     ]
A.
in
B.
use
C.
for
D.
with
【单选题】氨基酸是通过下列哪种化学键与 tRNA 结合的
A.
糖苷键
B.
磷酸酯键
C.
氢键
D.
酯键
【单选题】下列桥梁类型中,不属于圬工桥的是( )。
A.
砖桥
B.
石桥
C.
钢架桥
D.
混凝土桥
【单选题】氨基酸是通过下列哪种化学键与tRNA结合的?
A.
糖苷键
B.
磷酸酯键
C.
酯键
D.
氢键
E.
酰胺键
【单选题】The wild flowers looked like a soft orange blanket ______ the desert. A. covering B. covered C. cover D. to cover
A.
covering
B.
covered
C.
cover
D.
to cover
【单选题】The book _____ cover is blue is mine. [     ]
A.
whose
B.
which
C.
of which
D.
that
【单选题】组成房屋的构件中,下列既属承重构件又是围护构件的是
A.
砖混结构的墙、屋顶
B.
楼板、基础
C.
屋顶、基础
D.
门窗、砖混结构的墙
【简答题】A. cover B. spread C. help D. pass
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