老师要求学生用1和2这两个数字写一个两位数,8个学生中,至少有______个学生写的数相同.
8÷2=4(个);
答:至少有4个学生写的数相同.
故答案为:4.
下列哪项不是诊断小儿脑性瘫痪的依据()
A.有妊娠、围生期的高危因素
B.运动发育落后或异常
C.姿势控制异常
D.进行性中枢运动障碍和姿势异常
E.肌张力异常和不随意运动
They ___________to put their hearts into study..
A.have made their minds
B.have made their mind
C.have made up their minds
D.have made up their mind