问题
多项选择题
某城市规划建设4车道高速公路，全长80km，设计行车速度为80km/h，路基宽度为24.5m。全线有互通式立交5处、跨河特大桥1座(1750m)，大桥5座(共1640m)、隧道4座(共3800m)，其中单洞长隧道1座(2400m)。公路位于规划未建成区，起点接城市环路，沿线为山岭重丘区，相对高差50～300m，线路穿岭跨河，沿山谷行进，过山间盆地，有支线通向旅游区。该公路征用土地640hm2，其中农田150hm2，林地300hm2，草坡和未利用土地140hm2，其余为水塘宅基地等。土石方量8640×103m3，有高填方段2400m。项目总投资为38亿元。
该项目所在区域雨量充沛，夏多暴雨。森林覆盖率约为40%，包括人工森林和天然林。公路沿线农业经济发达，村庄较密集，穿越2个村庄，附近有2个较大乡镇，另有山岳型风景名胜区和农业观光区各1处。
[问题]
对森林生态系统的影响主要关注( )。
A．森林植被影响及可能对重要物种的影响
B．生物量损失、物种影响
C．森林生态系统切割(森林生境切割)与阻隔导致的对野生动物的影响
D．有无重要保护物科，
答案
参考答案：A,C
解析： 该项目所在区域森林覆盖率约为40%，包括人工森林和天然林，对森林生态系统的影响主要关注重要物种和森林生态系统切割(森林生境切割)与阻隔导致的对野生动物的影响。
Young people are invited to compete in this art festival with classes covering speech, guitar, dance, poetry and short story writing, and so on. The previous year's winners are invited back to perform again at a special concert. With a long and well-known history behind it, this well-attended competition is a kind of forerunner of popular television talent contests such as Pop Idol. 
Held at Sydney's Wharf 4/5, the annual Sydney Writers' Festival is the biggest literary event of its kind in Australia and one of the biggest book fairs in t
he world. Attracting a mix of authors, poets, editors, publishers and book lovers, this is a great event at which people can look through thousands of titles while enjoying workshops, book reading and seminars.
As part of the Singapore Arts Festival Outreach Programme, Flipside aims to reach a much wider audience with three weeks of lively, fun street performances. Flipside promises to bring out the adventurous side of you with a combination of physical theatre and mind games as well as free outdoor performances such as music performances from local singers.
The little market town, Hay, has a population of 1500 and no fewer than 39 bookshops. It bills itself as the world's first and most distinguished book town, and is, therefore, a perfect place for
a literary festival. The festival is a celebration of great writing. There are events including film screenings and musical concerts and the bookshops remain open throughout.
Founded in 1953, the Bergen International Festival presents an impressive cast of outstanding international artists in the fields of music, ballet, opera and other performing arts. More than 120 events take place in late May to early June, which is a time of beautiful spring weather. The main festival venue is the Grieg Hall while the smallest and most unusual is an old trolley bus with seating for just 33 people.
Held each Ma