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【单选题】
同种菌不同来源的纯培养称为A.
种
B.
变种
C.
菌株
D.
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举一反三
【单选题】It is surprising that this innocent looking person should have_____such a crime.
A.
acted
B.
committed
C.
finished
D.
performed
【简答题】数码管动态显示扫描的原理是利用了发光二极管的余晖和人眼的___________效应
【单选题】下列物质中,不能直接配制标准溶液的是( )
A.
K 2 Cr 2 O 7
B.
H 2 C 2 O 4 ·2H 2 O
C.
硼砂
D.
KMnO 4
E.
邻苯二甲酸氢钾
【简答题】Question 14. What does the author imply about Boston? ==== Passage 3 ==== Could you reproduce Silicon Valley elsewhere, or is there something unique about it?It wouldn't be surprising if it were hard ...
【简答题】阅读理解。 Can you imagine a world without the Internet? It's surprising to think about it. Now, China has more than 162 million Internet users, according to the China Internet Network Information Centre. ...
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