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【单选题】
最后被洗脱的是（ ）A.
2′，4′-二羟基黄酮
B.
3′，4，-二羟基二氢黄酮
C.
3′，4，-二羟基黄酮
D.
3′，4′-二羟基黄酮-3-O-葡萄糖苷
E.
3′，4，-二羟基黄酮-3-O-槐糖苷用聚酰胺柱色谱分离上述化合物，以含水乙醇进行洗脱
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【简答题】房水是由 ______________产生,进入________,经_______到达____________,通过小梁网、施莱姆管、集液管、房水静脉进入眼静脉系统。
【单选题】________________________ There are many places to go and visit. The buildings are beautiful, a mixture of old and new with plenty of shops for everyone. And we have the City Library, one of the landma...
A.
There are great buildings to visit in the town centre.
B.
I feel lucky to live in the town centre.
C.
I like to hang out in bars and cafes in the town centre.
【多选题】房水是由______________产生，进入________经_______到达前房，经____________通过____________、____________、____________、____________进入眼静脉系统。
A.
睫状突上皮细胞产生
B.
后房
C.
瞳孔
D.
前房
E.
小梁网
F.
施莱姆管
G.
集液管
H.
房水静脉
【单选题】______________________ There are many places to go and visit. The buildings are beautiful, a mixture of old and new with plenty of shops for everyone. And we have the City Library, one of the landmark...
A.
There are great buildings to visit in the town centre.
B.
I feel lucky to live in the town centre.
C.
I like to hang out in bars and cafes in the town centre.
【单选题】Choose the best topic sentence for the paragraph below. _______________________ There are many places to go and visit. The buildings are beautiful, a mixture of old and new with plenty of shops for e...
A.
There are great buildings to visit in the town centre.
B.
I feel lucky to live in the town centre.
C.
I like to hang out in bars and cafes in the town centre.
【简答题】完形填空。 When I was young, my parents ran a snack bar in our small town. One evening in early April, my mother told me to fill in at the snack bar 1 a worker who had the flu. I told her I would mess it u...
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