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【判断题】
开发商出具的附件补充合同，可能会取消、减轻卖方的责任。补充条款在某种程度上，它约定的事项比合同正文里约定的还重要。A.
正确
B.
错误
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【单选题】下列化合物进行聚酰胺柱色谱分离,以浓度从低到高的乙醇洗脱,最先被洗脱的是
A.
2',4'- 二羟基黄酮
B.
4'-OH 黄酮醇
C.
3',4'- 二羟基黄酮
D.
4'- 羟基异黄酮
E.
4'- 羟基二氢黄酮醇
【简答题】The malls were filled with people seeking gifts for their loved ones. Some of the malls remained open around the clock, partly to satisfy our needs to buy gifts. Behind the materialistic aspect of sho...
【简答题】阅读理解 Malls are popular places for Americans to go. Some people spend so much time at malls that they are called mall rats. Mall rats shop until they drop in the hundreds of stores under one roof. Peop...
【单选题】Shopping malls customarily experience some slack periods for sales, especially so in summer.
A.
successive
B.
lasting
C.
prosperous
D.
dull
【简答题】阅读理解。 Malls are popular places for Americans to go. Some people spend so much time at malls that they are called 'mallrats (老鼠)'. Mall rats shop until they drop in the hundreds of stores. People like ...
【单选题】下列化合物进行聚酰胺柱色谱分离,以浓度从低到高的乙醇洗脱,最先被洗脱的是
A.
2’，4’–二羟基黄酮
B.
4’–羟基黄酮醇
C.
3’，4’–二羟基黄酮
D.
4’–羟基异黄酮
E.
4’–羟基二氢黄酮醇
【简答题】用于生产中厚钢板的原料有 、 、 、 几种。
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