左边表格加了哪一个属性后，会变成右边的细边框效果？ A: collapse:collapse; B: border-collapse:collapse; C: border-collapse:separate;

84．在jQuery Mobile移动导航中，Navbar组件中，使用时只需将指定容器的________属性设置为navbar，来实现移动导航。

TheoldeconomicsystemintheSouthernStatesbeganto________,whentheConfederatearmywasdefeatedintheU.S.CivilWar.(collapse,destroy)

History in South Africa is now taught differently because A: of the collapse of communism. B: of the collapse of rule by white people. C: teachers are better than before.

若要单元格之间合并，则以下正确的是（ ） A: border-collapse:seprate B: border: seprate C: border-collapse:collapse D: border: collapse

Bootstrap中，设值按钮颜色为粉色的代码是.navbar：background-color: pink;

下列辅助类的说法错误的是（） A: 可以用来表示一个关闭按钮 B: 可以用来表示一个三角符号 C: navbar可使用pull-left类来定义 D: navbar可使用navbar-left类来定义

Translate the sentence “It is not a collapse of everything into one thing” into Chinese.

As a result of the recent financial collapse, many people _______ worthless investment.

微信小程序中用()组件可以实现导航栏。 A: navbar B: swiper C: picker D: scroll-view