【判断题】若置51单片机的定时器/计数器T1于计数模式,工作于方式1,则工作方式字为50H。( )
【简答题】“故不积跬步,无以至千里;不积小流,无以成江海。” (《荀子》) “跬步”作何解释? 请解释整个句子的意思。
【判断题】“故不积跬步,无以致千里;不积小流,无以成江海。骐骥一跃,不能十步;怒马十驾,功在不舍。”书写完全正确。
【单选题】— It rained heavily yesterday. Did you get wet ? — Quite lucky, ______ got on the train when it poured down.
【简答题】在 CSS 中,用于设置行间距的属性是【 】
【单选题】听力原文:Dozens of valuable paintings and frescoes were badly damaged when rainwater poured through a roof at the state museum. As freak rainstorms lashed in the central and southern sections of the state...
D.
The central and southern rooms.
【单选题】下列物质属于分子晶体的是( )
B.
熔点是10.31℃,液态不导电,水溶液能导电
C.
能溶于水,熔点812.8℃,沸点是1446℃
D.
熔点是97.80℃,质软、导电,密度是0.97g/cm 3