男性,吸烟史10年,每天吸一包烟,患肺癌的危险性较不吸烟者大约增加()
A.5倍
B.10倍
C.20倍
D.60倍
E.100倍
参考答案:B
首字母填空
My dear foreign friends, I was a volunteer of the 2008 Olympic Games.
Beijing is my hometown. I was b 1 and grew up here. It is a beautiful and modem city. It has c 2 a lot and has become one of the most important c 3 in the world. Beijing is a great city w 4 a long history. There are many f 5 places of interest here. I’d be glad to s 6 you around the Great Wall, the Summer Palace, Tian’ an men Square and so on.
Beijing is the c 7 of China. It is also China’s political ( 政治的) , economic and c 8 centre. People in Beijing are all very energetic and friendly.
The 2008 Olympic Games was h 9 in Beijing. We had every confidence in Beijing Olympic Games. It was our delight to w 10 all guests in Beijing in A 11 .
Finally, I hope you’ll e 12 your stay here and make new friends in China.
粘液样变不常见于
A.间叶组织肿瘤
B.动脉粥样硬化斑块
C.风湿病
D.多发性骨髓瘤