已知抛物线C₁：y=﹣x²+4x﹣3，把抛物线C₁先向右平移3个单位长度，再向上平移3个单位长度，得到抛物线C₂，将抛物线C₁和抛物线C₂这两个图象在x轴及其上方的部分记作图象M．若直线y=kx+ $\frac{1}{2}$ （k≥0）与图象M至少有2个不同的交点，则k的取值范围是____．

植物类群结构上从简单到复杂是：____植物、苔藓植物、____植物、裸子植物、____植物．

    This morning Jenny, Linda, Mary, Alice and Sally found five bags. Jenny found a brown bag in Classroom 208. In the bag is ____. Linda found a purple bag in Classroom 306.In the bag is ____. Mary found a green bag in Classroom 409.In the bag is ____.Alice found a red bag ____.In the bag is a yellow pencil. Sally found a blue bag ____.In the age is a watch.