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【单选题】
已知在一定温度下,氨水的Kob=1.8×10-5,其浓度为0.500 mol/L时溶液的pH为( )
A.
2.52
B.
11.48
C.
9.23
D.
12.47
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参考答案:
举一反三
【简答题】Following the author's approach to yzing the modernization of Europe, yze the modernization of China by answering the two questions: What s made China modern? What did "modern" mean for C...
【单选题】下图所示二向应力状态,其最大主应力σ1= 。【图片】
A.
( A ) σ ;
B.
( B ) 2σ ;
C.
( C ) 3σ ;
D.
( D ) 4σ 。
【简答题】写一个判素数的函数,在主函数输入一个整数,输出是否素数的信息。
【判断题】夹紧装置,不需要有好的夹紧刚度。( )
A.
正确
B.
错误
【单选题】Why did some students feel uncomfortable about the color-coded gowns after they were given a choice of color?
A.
because they do not think students need to wear graduation gowns anymore
B.
because they think having one color is worse than having two colors
C.
because they think adults should choose their colors and not students
D.
because they do not want to choose in front of their parents
【多选题】担子中的食用菌包括()
A.
耳类
B.
非褐菌类
C.
伞菌科
D.
腹菌类
【简答题】写一个判素数的函数,在主函数输入一个整数,输出是否为素数的信息。
【简答题】When did you last go outside for sports? Some students might need a while to remember. But for students in Yangzhou University it is easy to remember as they need to run in the morning at least three ...
【单选题】4 0 7.国内市场按( )可分为消费者市场、生产者市场、中间商市场及政府市场。
A.
购买动机
B.
商品用途
C.
购买心理
D.
人口因素
【单选题】在Word文档中,要使文本环绕剪贴画产生图文混排的效果,应该
A.
在快捷菜单中选择“设置艺术字格式”
B.
在快捷菜单中选择“设置自选图形的格式”
C.
在快捷菜单中选择“设置剪贴画格式”
D.
在快捷菜单中选择“设置图片的格式”
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