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【简答题】
查询学生(students)表中专业人数在2个及以上的专业名称和人数。 SELECT zhy AS 专业,( ) FROM students GROUP BY ( ) HAVING ( );
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【单选题】朱丹溪的学术思想是() @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-famil...
A.
阳非有余，真阴不足 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
B.
阳平阳秘 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
C.
阴中求阳，阳中求阴 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
D.
阳常有余，阴常不足 @font-face { font-family: "Times New Roman";}@font-face { font-family: "宋体";}@font-face { font-family: "Calibri";}p.MsoNormal { margin: 0pt 0pt 0.0001pt; text-align: justify; font-family: Calibri; font-size: 10.5pt; }span.msoIns { text-decoration: underline; color: blue; }span.msoDel { text-decoration: line-through; color: red; }div.Section0 { }
【单选题】光波在非均质体中传播时,下列描述不正确的是 。
A.
传播速度不因振动方向而发生变化
B.
折射率不止一个
C.
除特殊方向外，均发生双折射
D.
除特殊方向外，一条光线会分解成两条振动方向互相垂直的平面偏光
【简答题】为什么用浓硫酸可以出去溴乙烷中的乙醚和乙醇?
【单选题】光波在非均质体中传播时,下列描述不正确的是 。
A.
传播速度不因传播方向而发生变化
B.
折射率不止一个
C.
除特殊方向外，均发生双折射
D.
除特殊方向外，一条光线会分解成两条振动方向互相垂直的平面偏光
【单选题】No matter who you are and what are you, ________, we should remember that 'being' and 'doing' are much more important than 'having'. [ ]
A.
after all
B.
in all
C.
first of all
D.
above all
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