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【简答题】
紫外可见分光光度计在可见光区用 为光源,波长范围为 ; 在紫外光区,用 为光源,波长范围为 。
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举一反三
【简答题】现代汉民族共同语以______为基础方言。
【单选题】Man: Excuse me, Miss. Do you know where I can find file holders? Saleswoman: You see the kitchenware there? _____.
A.
Then you'll surely see file holders.
B.
Stationery is just one file after that.
C.
Pens and pencils are together with file holders.
D.
It's somewhere nearby.
【单选题】Man: Excuse me, Miss. Do you know where I can find file holders? Saleswoman: You see the kitchenware there? ______
A.
Then you'll surely see file holders.
B.
Stationery is just one isle after that.
C.
Pens and pencils are together with file holders.
D.
It's somewhere nearby.
【简答题】甘油磷脂合成过程中需要的核苷酸是A. CTP， TTP B. UTP， GTP C. ATP， GTP D. ATP， CTP E. ATP， UTP
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