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【单选题】
应用PstI内切酶切割后的目的基因与载体DNA连接的方式 ( )A.
同聚物加尾连接
B.
人工接头连接
C.
连接
D.
粘性末端连接
E.
非粘性末端连接
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皮皮学刷刷变学霸
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【简答题】All eyes were . 所有的目光都注意到演讲者身上。
【简答题】某元素原子的价电子构型是3d54s1，该元素位于第 周期。
【单选题】When the _____ young actor appeared on the stage, all eyes were fixed upon him.A．beautifulB．hand
A.
48. When the _____ young actor appeared on the stage, all eyes were fixed upon him. A．beautiful
B.
handsome
C.
pretty
D.
happy
【单选题】All eyes were ______ the young actress who was standing at the center of the stage.
A.
signed up
B.
cared about
C.
focused on
D.
led to
【单选题】When the_____young actor appeared on the stage, all eyes were fixed upon him.
A.
beautiful
B.
handsome
C.
pretty
D.
happy
【单选题】All eyes were ________________ the young actress who was standing at the center of the stage.
A.
focused on
B.
began with
C.
try out
D.
dropped out
【简答题】All eyes were ________ the young actress who was standing at the center of the stage.A. focused onB. signed upC. ended upD. dropped out
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