青城小学三(2)班有学生45人,四(1)班比三(2)班学生数多20%,四(1)班学生有多少人?
45×(1+20%)
=45×1.2,
=54(人),
答:四(1)班学生有54人.
根据句意,用括号中所给词的正确形式填空。
小题1:Do you know the______ (important) of English study?.
小题2:It is ______ (correct) to hunt red-crowned cranes.
小题3:If it ______ (snow) tomorrow, we won’t go to the park.
小题4:Andy was very tired, so he decided ______ (stay) at home to have a rest.
小题5:The girl has a ______ (smile) face and looks very lovely.
小题6:The world ______ (it) is becoming a smaller place because of the Internet.
小题7:The radio says it will be ______ (wind) next Monday.
小题8:The books are those ______ (win). They are new.
装配图的内容是用一组视图清晰地表达各零件之间的配合关系、()。
A.连接关系、相对位置及传动关系等
B.配置关系、相对位置及评定要素等
C.运转关系、绝对位置及调整关系等
D.连接关系、绝对位置及传动关系等