一个修路队修一条公路,前6天修了360米,照这样计算,又用了14天把路修完。这段公路全长多少米?(用比例解)
解:设这段路全长x米。
360:6=(x-360):14
x=1200
What do you eat every evening? Do you eat meat? Do you eat vegetables? Do you eat fruit or dessert after dinner? We asked online 55 students of Class 1, Grade 7 in Sunshine School. Here is the result.
小题1:How many girls are there in Class 1, Grade 7?
A.Twenty.
B.Thirty-five.
C.Thirty.
D.Twenty-five.小题2:In the class, 10 students don’t eat for dinner.
A.meat
B.vegetables
C.fruit
D.dessert小题3:How did the writer get the result?
A.He went to Sunshine School to ask some students.
B.He got it from the newspaper.
C.He asked some students on the Internet.
D.Somebody else told him about it.
对下列物质在氧气中燃烧的实验现象描述正确的是( )
A.红磷燃烧,有大量白雾生成
B.木炭在空气中燃烧,生成黑色固体
C.硫粉在氧气中燃烧时,发出黄色火焰
D.氢气在氧气中燃烧时,发出淡蓝色的火焰