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PCR反应包括引物与DNA模板链间的与复性。讨论循环温度范围对引物-DNA双螺旋稳定性的影响及对PCR产率的影响。
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【单选题】What kind of sports facilities do UK local governments proved according to the lesson?
A.
swimming pools
B.
tennis court
C.
football pitches
D.
all the above
【单选题】--- What kind of sports do you like best? ---Cycling. It makes me_____.
A.
tired          
B.
tiring          
C.
excited      
D.
exciting
【简答题】Can we live without salt (盐)? No , salt is very important to us . We need salt in our food . Animals need it , too . Most of the salt in our country comes from the sea water . People dig very big pool...
【单选题】What did the researchers find about carrots
A.
They were disliked most by children.
B.
They were considered most nutritious.
C.
They were least used in Belgian cooking.
D.
They were essential to children’s health.
【单选题】“以形传神”、“传神写照”是中国画家( )提出来的。
A.
顾闳中
B.
阎立本
C.
顾恺之
D.
吴道子
【单选题】What kind of sports do you do _____ the weekend?
A.
on
B.
at
C.
in
D.
with
【单选题】以形写神“迁想妙得”“悟对神通”这些观点是我国古( )提出的
A.
吴道子
B.
顾恺之
C.
韩晃
D.
李唐
【多选题】下列哪些是顾恺之提出的?
A.
迁想秒得
B.
以形写神
C.
随类赋彩
D.
经营位置
【简答题】听第10段材料,回答第17 -20题。 17. What did the man have to do in the morning? [ A] He fed the chickens. [B] He cleaned the bathroom. ‘ [ C] He carried water for the family.
【多选题】What kind of sports can be done in the sports deck on the cruise?
A.
basketball
B.
volleyball
C.
dodgeball
D.
soccer
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