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【单选题】
8一羟基喹啉一5一磺酸是一种常见的荧光试剂，其结构如右图所示，它的羟基氧和环上的氮可以和二价镁离子发生配合。与原化合物相比，其配合物的荧光强度将_________。A.
减少；
B.
不变；
C.
增强；
D.
无法预测。
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反馈参考答案：
举一反三
【简答题】下列四个无符号十进制整数中,能用八个进制位表示的是( )
【简答题】当x→0时，下列变量中为无穷小量的是( ) A． B． C．ln(1＋x) D．当x→0时，下列变量中为无穷小量的是( )
【单选题】Among the following plays which is not written by Christopher Marlowe?
A.
The Tragical History of Doctor Faustus
B.
The Jew of Malta
C.
Tamburlaine the Great
D.
The School for Scandal
【单选题】Which of the following statements is not true?
A.
There is a general flowering of cultural and intellectual life in Europe during the 15th and 16th centuries, known as the Renaissance.
B.
In British culture, one of the most successful and long-lasting expressions of the development of the Renaissance lay in drama.
C.
The most eminent figures in this period are the great trio: Christopher Marlowe, William Shakespeare and Ben Johnson.
D.
Christopher Marlowe's most famous play is Dr. Jekyll and Mr. Hyde.
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