题目内容

.btn-sm就可以获得（）尺寸的按钮

A. 大按钮
B. 小按钮
C. 超小按钮
D. 中等按钮

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通过为按钮的背景设置（）属性就可以呈现出无法点击的效果。

A. opacity
B. active
C. unactive
D. primary

为

A. disabled
B. ondisabled
C. active
D. actived

如果元素被作为按钮使用 -- 并用于在当前页面触发某些功能 -- 而不是用于链接其他页面或链接当前页面中的其他部分，那么，务必为其设置 ()属性。

A. role="active"
B. role="button"
C. role="btn"
D. role="botn"

[音频]A: How are you _____ with your studies in college?B: Not very well, I thought that the subjects would be easy and I would have to have fun, but actually I have many assignments.A: What type of assignment are you having problems with?B: I find my math assignments _.A: Have you considered asking a tutor for help?B: Hmm, I guess I could. would I find one?A: You can often find them advertising on the notice board ____.B: OK. Thank you for your advice.