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【单选题】
当 x → 0 时,下列变量中( )是无穷小量。A.
B.
C.
D.
D
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【单选题】关于ASP.NET验证控件描述不正确的是哪一项
A.
当触发必填验证、范围验证、比较验证和正则表达式验证时,页面无需回传服务器。
B.
如果要验证的控件类型是DropDownList,那么要验证的属性是SelectedValue
C.
自定义验证控件的服务器端验证方式,一定会导致页面刷新。
D.
所有验证控件都是借助JAVASCRIPT实现的
【简答题】范围验证控件、自定义验证控件 要求在文本框中输入的必须是偶数,且数值范围在 2-1000 之间,同时显示“验证通过!”;否则不能通过验证并显示“必须输入一个偶数!”或者“数值必须在 2-1000 之间!”,同时在页面上显示“验证失败!”。如图所示。
【简答题】Last weekend our school held a sports meeting. 1. (Realize) it was our last high school sports meeting, we decided to make it an unforgettable experience for all of us. We first attended the opening p...
【简答题】When I was a child, I once went on camping with my family in summer. We decided to make a barbecue in a valley where lay in a beautiful mountain. So we collected some tree sticks to make the fire. My ...
【单选题】_____ full preparations, we decided to put off the party till next week. [ ]
A.
We did not make
B.
Having not made
C.
We had not made
D.
Not having made
【单选题】We decided to make a survey about they liked going to the malls. [ ]
A.
that
B.
why
C.
how
D.
who
【单选题】We decided to make ________ a rule for students not tobring mobile phones to school.
A.
that
B.
this
C.
it
D.
one
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