甲、乙两灯分别标有“6V 6W”、“6V 3W”字样，现将两灯接入同一电路中使用，则下列说法正确的是（不计温度对灯丝电阻的影响）（　　）

要了解一批电视机的使用寿命，从中任意抽取40台电视机进行试验，在这个问题中，40是（ ）

下列没有错别字的一项是（　　）

多音字组词

盛：chéng____、shèng____

埋：mái____、mán____

量：liáng____、liàng____

会：huì____、kuài____

难：nán____、nàn____

阅读理解

Sam

    Sam gets up at six in the morning. After that he does morning exercises, has breakfast and goes to school at seven

    Classes begin at eight. In class all of his classmates listen to the teachers carefully. The teachers often ask them some questions. They put up their hands when they know the answers.

    Sam is good at math. That's his favorite subject. His geography (地理) is poor, and he is working hard at it. He likes English. After class he and his classmates often talk to each other in English.

    Classes are over at four in the afternoon. Then the students have an hour to play sports. On Sundays Sam often goes to the park with his friends. In the evening Sam usually does his homework. Sometimes he goes to see a film with his parents. He goes to sleep at about ten.