1、This kind of bird is_(enable)to fly very fast.2、He got up early so that he could catch the early train.He got up early __to catch the early train.(两个空格)3、某同学家的电能表月初示数为0826.5,如果他家用电器的总功
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1、This kind of bird is_(enable)to fly very fast.2、He got up early so that he could catch the early train.He got up early __to catch the early train.(两个空格)3、某同学家的电能表月初示数为0826.5,如果他家用电器的总功
1、This kind of bird is_(enable)to fly very fast.
2、He got up early so that he could catch the early train.
He got up early __to catch the early train.(两个空格)
3、某同学家的电能表月初示数为0826.5,如果他家用电器的总功率是270W,平均每天使用3小时,那么(30天)他家电能表的示数为多少?
1、This kind of bird is_(enable)to fly very fast.2、He got up early so that he could catch the early train.He got up early __to catch the early train.(两个空格)3、某同学家的电能表月初示数为0826.5,如果他家用电器的总功
able
in order
电能表上显示的是度数,而一度等于一千瓦时,所以270W=0.27KW,
所以一天用 0.27*3=0.81KWh 即 0.81度
所以一个月就用了 0.81*30=24.3度
所以电能表示数为 0826.5+24.3=0850.8
1.enabled:被动语态
2.He got up early to catch the early train.不定式表目的。
3.电表示数就是电器消耗的电能W。
30天所消耗的电能W由公式W=P*T=0.27kw*3h*30=24.3kwh
也就是用了24.3度电,所以示数为24.3+826.5=850.8