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【单选题】
下述种类的利尿药中，利尿作用最强的是()。A.
噻嗪类利尿剂
B.
留钾利尿剂
C.
袢利尿剂
D.
碳酸酐酶抑制剂
E.
以上药物作用强度相同
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【单选题】Vincent van Gogh is one of the most _________famous painter as the representative of the postimpressionist.
A.
Dutch
B.
French
C.
British
D.
American
【简答题】Vincent van Gogh is ____ in the Netherlands.
【简答题】Vincent van Gogh is often remembered as the painter who cut off his ear in a fit of passion. He was a lonely man who often went without1 food in order to buy paints, a man with few friends and a storm...
【简答题】Vincent van Gogh is often remembered as the painter who cut off his ear in a fit of passion. He was a lonely man who often went without1 food insgroupsto buy paints, a man with few friends and a storm...
【单选题】已知有如下三个表： 学生(学号，姓名，性别，班级) 课程(课程名称，学时，性质) 成绩(课程名称，学号，分数) 若要列出“99网络”班所有“数据库技术”课成绩不及格的同学的学号、姓名、课程名称、分数，则应该对这些表进行哪些操作？（ ）
A.
选择和自然连接
B.
投影和自然连接
C.
选择、投影和自然连接
D.
选择和投影
【简答题】Vincent van Gogh is ( the best known artist ) in the Netherlands .
【简答题】Vincent van Gogh is often remembered as the painter who cut off his ear in a fit of passion. He was a lonely man who often went without food in order to buy paints, a man with few friends and a stormy...
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