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搜题
【单选题】
于()创立了第一国际。
A.
19世纪40年代后半期
B.
19世纪60年代中期
C.
19世纪70年代中期
D.
19世纪90年代前半期
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举一反三
【单选题】Molisch试剂的组成是( )。
A.
a-紫酚-浓硫酸
B.
β-萘酚-浓硫酸
C.
氧化铜一氢氧化钠
D.
硝酸银-氨水
E.
硫酸铜-氢氧化钠
【简答题】按照SDH中复用线路可以看出,1个STM-1可以包含()个140M,可以包含()个34M,()个2M。
【单选题】At the beginning of the 16th century the outstanding humanist ______wrote his Utopia in which he gave a profound and truthful picture of the people's suffering and put forward his ideal of a future ha...
A.
Thomas More
B.
Thomas Marlowe
C.
Francis Bacon
D.
William Shakespeare
【单选题】Shakespeare wrote at least thirty-seven plays, ______ showed his knowledge on various subjects.
A.
which
B.
/
C.
that
D.
what
【单选题】Shakespeare wrote at the end of the __________ and the beginning of the __________ century. This was the period of the English Renaissance.
A.
14th, 15th
B.
15th, 16th
C.
16th, 17th
D.
17th, 18th
【单选题】20(S)-原人参二醇()
A.
能与Molisch试剂呈阳性反应
B.
能与Liebermann-Burchard试剂呈阳性反应
C.
在254nm紫外光下有强吸收
D.
在13C-NMR波谱图上可见羧基信号峰
【简答题】2 Complete the sentences ► A dictionary is arranged in alphabetical order. 1 If you don’t know the date of the French Revolution, look it up in an ____. 2 Shakespeare is famous for his p...
【单选题】At the beginning of the 16 th century, the outstanding humanist wrote his Utopia in which he gave a profound and truthful picture of the people’s suffering and put forward his ideal of a future happy ...
A.
Thomas More
B.
William Shakespeare
C.
Francis Bacon
D.
Edmund Spencer
【多选题】与Molisch试剂呈现阳性反应的是
A.
rha
B.
glu
C.
D.
苷元
【简答题】William Shakespeare was born in 15 in England. At school,he liked watching plays. He decided to be an actor when he finished school at the age of 14. At 28, he moved to London and joined a theater c...
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