有关美国的叙述,正确的是[ ]
A.其人种都为白种人
B.其土著民族为吉普赛人
C.除本土48个洲外,还包括阿拉斯加和夏威夷两个洲
D.硅谷位于华盛顿市的东南
答案:C
补全对话。
A: Good evening, Mr. Kong. I am a reporter from Jinan TV station.
B: Good evening. Thank you for 1____ me.
A: 2____ were you born?.
B: I was born in Qingdao.
A: 3____ did you take part in the national table tennis team?
B: In 1996.
A: 4____ did you started learning to play table tennis?
B: 5____ the age of six.
A: You know, Beijing is going to hold the 2008 Olympic Games. As an 6____, you must
have a good plan, 7____?
B: Yes, of course. I am very glad that I 8____ a national team player. Second, I feel excited
about the Olympic Games. 9____, I would like to do my best to 10____ the prize at the
games.
A: OK. I hope you can get a good result!
B: Thank you very much.
盛有氯化钡稀溶液的甲、乙两试管中分别通入SO2至饱和,若向甲试管中加入足量硝酸,乙试管中加入足量氢氧化钠溶液,则下列叙述正确的是[ ]
A.甲、乙两试管都有白色沉淀生成
B.甲、乙两试管都没有白色沉淀生成
C.甲试管没有白色沉淀生成而乙试管有
D.甲试管有白色沉淀生成而乙试管没有