关于东南亚居民的叙述，正确的是（ ）
A．新加坡华人占该国总人口的50%
B．东南亚是华人和华侨分布最集中的地区
C．东南亚居民主要分布在广大山区和热带雨林地带
D．东南亚的华人华侨的祖先大多是来自中国的广西和广东的农民
新加坡华人占该国总人口的76%；东南亚是世界上华人和华侨分布最集中的地区；东南亚居民主要分布在大河两岸的冲积平原、河口三角洲以及沿海平原；东南亚的华人华侨祖先主要来自于我国东南沿海一代，特别是广东、福建两省，选项ACD叙述错误，不符合题意．
故选：B．
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| My friend, David Smith, kept birds. One day he phoned and 1 me he would be away for a week. He asked me to feed the bird 2 him and said he would leave his key in my mailbox. Unfortunately, I did not remember to feed the birds 3 the night before David was going to return. I rushed out of my house and it was already dark when I arrived at 4 house. I soon found the key he gave me could unlock neither the front door 5 the back door! I kept 6 of what David would say when came back. Then I noticed 7 one bedroom window was open. I found a big tone and pushed it under the window 8 the stone was very heavy. I heard of niose. But in the end, I managed to climb up. I had one leg inside the bedroom when I suddenly realized that someone 9 a torch (电筒) up at me. I looked down and saw 10 policeman and an old lady, one of David's neighbours. "What are you doing up there?" Said the policeman. Feeling like a fool, I replied, "I was just going to feed Mr. Smith's birds." | ||||
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