A:x=1y=0z=5
B:x=1y=2z=4
C:x=1y=0z=4
D:x=4y=1z=0
口香糖中常用木糖醇做甜味剂,木糖醇可以防止龋齿,木糖醇的结构简式为: ,下列有关木糖醇的说法正确的是( )
Sarah's home is a little far from her school. So she always _______ to school.