英语:1.It is ___(report) that the new supermarket will be open
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英语:
1.It is ___(report) that the new supermarket will be open in three days.(用所给词的适当形式填空0
2.You are ___ to have such a happy family.
A.luck B.lucky C.luckly D.luckily
3.这个故事改变了本的生活.
The story ___ ___ ___.
4.成为其中的一名志愿者是很困难的.
It is very difficult ___ ___ ___ ___ ___ ___.
1.有两盏灯,甲灯上标有“36v 60w",乙灯上标有”220v 60w",当他们分别在额定电压下发光时,会看到( )
A.甲灯比乙灯亮 B.乙灯比甲灯亮 C.两盏灯一样亮 D.无法确定哪盏灯更亮
2.城市的交叉路口通常都装有红、黄、绿三色灯来指挥车辆行人通行.若每只灯的规格都是“220v 300w”,则每组交通指挥灯(含红、黄、绿三种颜色)工作15h要消耗电能___J.
3.下列四只灯泡各自在额定电压下正常发光,其中最亮的是( )
A.22v 25w B.220v 40w C.36v 60w D.24v 100w
4.25w=__J\s=__V乘A=__kw.
英语要翻译 并说明理由 让我能明白是怎么得出来的
1.It is ___(report) that the new supermarket will be open in three days.(用所给词的适当形式填空0
2.You are ___ to have such a happy family.
A.luck B.lucky C.luckly D.luckily
3.这个故事改变了本的生活.
The story ___ ___ ___.
4.成为其中的一名志愿者是很困难的.
It is very difficult ___ ___ ___ ___ ___ ___.
1.有两盏灯,甲灯上标有“36v 60w",乙灯上标有”220v 60w",当他们分别在额定电压下发光时,会看到( )
A.甲灯比乙灯亮 B.乙灯比甲灯亮 C.两盏灯一样亮 D.无法确定哪盏灯更亮
2.城市的交叉路口通常都装有红、黄、绿三色灯来指挥车辆行人通行.若每只灯的规格都是“220v 300w”,则每组交通指挥灯(含红、黄、绿三种颜色)工作15h要消耗电能___J.
3.下列四只灯泡各自在额定电压下正常发光,其中最亮的是( )
A.22v 25w B.220v 40w C.36v 60w D.24v 100w
4.25w=__J\s=__V乘A=__kw.
英语要翻译 并说明理由 让我能明白是怎么得出来的
1.无需翻译,be doing reporting2.无需翻译 be adj lucky3、change,Ben's,life
4、to,be,one,of,the,volunteers
1.P=u的平方/R带入得出结果答案你自己算,不能害你!
2.因为300W=0.3KW,根据W=Pt所以根据公式再乘以3.6*10的6次
3.全部用R=u的平方/p算出所有电阻,最小的最亮!
4.1W=3.6*10的6次J
所以用25*3.6*10的6次=?=“V乘A”是什么意思啊?后面一个用25/10的3次
那个不懂问我,我是最佳啊!
4、to,be,one,of,the,volunteers
1.P=u的平方/R带入得出结果答案你自己算,不能害你!
2.因为300W=0.3KW,根据W=Pt所以根据公式再乘以3.6*10的6次
3.全部用R=u的平方/p算出所有电阻,最小的最亮!
4.1W=3.6*10的6次J
所以用25*3.6*10的6次=?=“V乘A”是什么意思啊?后面一个用25/10的3次
那个不懂问我,我是最佳啊!
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