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【单选题】
You create a Web page that contains drop-down menus that are defined by using div tags in the following code. You need to write a JavaScript function that will enable the drop-down menus to activate when the user positions the mouse over the menu title. Which code segment should you use?()
A.
$(".dropdown-menu").hover( function () { $(".menu-items").slideDown(100); },function () {   $(".menu-items").slideUp(100); } );
B.
$(".dropdown-menu").hover( function () { $(".menu-items", this).slideDown(100); },function (){ $(".menu-items", this).slideUp(100); } );
C.
$(".dropdown-menu").hover( function () { $(this)".slideDown(100); }, function () {  $(this).slideUp(100);  } );
D.
$(".dropdown-menu").hover( function () { $("this.menu-title",).slideDown(100); },function () {$("this.menu-title",).slideUp(100); } );
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举一反三
【单选题】快滤池、无阀滤池和压力滤池的个数及单个滤池面积,应根据生产规模和运行维护等条件通过技术经济比较确定,但个数不得少于( )。
A.
三个
B.
两个
C.
两组
D.
三组
【简答题】使用存储过程访问数据库比直接用SQL语句访问有哪些优点 ?
【单选题】The accident damaged the ______ controlling his arm movements.
A.
waist
B.
head
C.
heart
D.
nervs
【单选题】The car damaged in the accident can't be used unless ______ completely. [     ]
A.
is repaired
B.
is being repaired
C.
repaired
D.
to be repaired
【简答题】The man reported the accident. His car was damaged.
【简答题】阐述肉用种鸡的限制饲养的目的、作用和方法?
【单选题】The car was damaged_________repair in the accident.
A.
in
B.
under
C.
beyond
D.
on
【简答题】The accident damaged the __________ controlling his arm movements.
【单选题】快滤池、无阀滤池和压力滤池的个数及单个滤池面积,应根据生产规模和运行维护等条件通过技术经济比较确定,但个数不得少于
A.
3个
B.
2个
C.
2组
D.
3组
【单选题】On the day of the accident, part of the old road ______.
A.
was damaged
B.
was broadened to make traffic easier
C.
was under repair
D.
was closed to cars
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