2009年12月7日至18日，联合国气候变化大会在 举行 [ ]
A．英国的伦敦
B．丹麦的哥本哈根
C．中国的南昌
D．中国的北京
答案：B
下列哪项符合产血小板型巨核细胞的核染色质特点（）
A.粗颗粒状和小块状
B.条状或块状
C.小块状
D.细颗粒状
E.核完全固缩
Young people should travel not only to find out about the present 31 to find out about the future. A grand tour today should be the opposite of 32 it was in the past. It should not include museums, castles and ruins. It should go 33 human life is, to places that throw you images of the future. It should not be an escape of 34 (real) but a challenge with 35 .
Young people of today should go to the wildest, farthest, poor place they can think of. They should go to the wild places of Asia, Africa, and South America. Young people should go to 36 many such places as they can, 37 these places are closing up and in time they’ll become impossible.
The other area young people should travel 38 ____________ is the same sort of area within their own country, places that are a kind of 39 ____________ (know) land, 40 _______ as the Congo Basin.
