________ do you update your micro blog (微博)? —Twice a week.

依次填入下面一段文字横线处的语句，衔接最恰当的是（ ）沿着主校道缓缓前行， ， ， ； ， ， 　 ，正是这平淡的桂花奉献给人们诱人的芬芳。①桂树如同一把撑起的伞，在细细绿叶中隐藏着一簇簇米黄色的小桂花②沿着鹅卵石铺成的甬道踏入桂园，香味更加浓烈③校道两边的法国梧桐像欢迎首长的士兵一样挺立着，高大雄伟④迎面扑鼻而来的是一股浓郁的奇香，循香寻找其源，方知有桂园⑤树干粗壮，孔武有力，树叶迎风起舞⑥树冠像一把巨大的伞，遮天蔽日

saster-stricken village was inaccessible_______ by helicopter, and the storm added to the rescuers’ difficulty

Zhang Hua, where is Liu Meimei now—She with her twin sister the fashion show tomorrow.

If not controlled, some terrible diseases will spread in the stricken areas after the terrible earthquake.—So people there are in _____ need of medical teams.