下列对光合作用意义的描述，不正确的是(   )。

港珠澳大桥于2009年12月15日正式动工。港珠澳大桥跨海逾35千米。成为世界最长的跨海大桥。大桥将建6 000多米长的海底隧道，施工难度世界第一；港珠澳大桥建成后，使用寿命长达120年，可以抗击8级地震。读图，回答下题。

在现代交通中，高速列车已成为现实，为了不影响高速列车的运行，有人设想：若能使高速列车进出站时既不停车又能上下乘客，岂不更好？你能进行这样的设计吗？若能设计，请说明怎样设计。____。

    It is the world's most well-known and popular song. It has been sung hundreds of millions of times each year. It has been heard in outer space, at baseball stadiums, in movies and in domiciles(住处)from the White House to the most remote(遥远的) backwoods shack(窝棚) in Misissippi. It has been wired into millions of music boxes, greeting cards, watches, toys, games and other tune-playing products. And it is the only song in the English language to make people of all ages smile and sing along. The song, of course, is Happy Birthday to You".

    This amazing song began its life in 1893. Written by two sisters from Kentucky, Mildred and Patty Hill, it was originally (起初) named “Good Morning to All”, and intended as a classroom greeting from teachers to students:

    Good morning to you

    Good morning to you

    Good morning, dear children

    Good morning to all.

    To this day, no one knows for sure who wrote the new words to Hill's melody(旋律),or exactly when it happened. “Happy Birthday to You” first appeared in a songbook in1924.The words were presented as the second stanza(节) to "Good morning to You".