问题
单项选择题
对于皮肤癌常见病因学描述不正确的是（）
A.日光
B.过量放射线照射
C.化学物质
D.物理性因素
E.饮食因素
答案
参考答案：E
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对于皮肤癌常见病因学描述不正确的是（）
A.日光
B.过量放射线照射
C.化学物质
D.物理性因素
E.饮食因素
参考答案：E
“Wanted: Violin. Can’t pay much. Call…” That advertisement in the newspaper made me remember my childhood. I, too, had wanted a violin, but we didn’t have the money. Even though times were 16 , I couldn’t wait any longer to ask. “Daddy, may I have a violin of 17 ?” Daddy’s face looked 18 . But a few weeks later, Daddy went home, with a case in his hand, 19 ,“Mary, I found this secondhand violin for seven dollars.” The day when I carried my violin to school for my first lesson , no one could know how 20 I was. I practiced, joined the school orchestra(管弦乐队), gave performances……Several years seemed to run even quickly and I found myself in the first violin chair. More years 21 , and my violin made every move with me, until one day, I carefully 22 it away. Now here 23 this want advertisement, I discovered the case deep in my closet（储藏室）. I put it on the table. Then I picked up the 24 , walked to the telephone and called by the 25 . Later in the day, a man of about 30 knocked at the door. “I’ve been expecting someone would 26 my advertisement. My daughter wants a violin so 27 ,”he said, examining my violin. “How much are you asking?” I said, “Seven dollars.” “Are you sure?” he asked, 28 he did not believe his ears. “Seven dollars.” I 29 and then added,” I hope your little girl will enjoy it 30 I did.” I smiled, but I found my tears(眼泪) rolling down my face.
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