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【简答题】
After the examination, the doctor told my parents my sight would get worse and that I would lose my sight finally. On the way home from hospital, no one said a word. One day, would I only imagine the scenery beyond the glass rather than see it? That September, I entered middle school. Most nights I had homework that included an armful of books to read. To keep up with other children, I took great trouble to finish the task. With my nose a couple of inches from the page, I was tired easily. What’s worse, after I had read several pages on my own, the words slipped off the page into inky pools. However, then I did not have audio books and electronic devices like kids do now. Instead, Mom volunteered to read out loud. Mom worked part-time, cleaned the house, cooked and spent time with Grandma. In spite of being so busy, she showed up in my room like clockwork. She put on her reading glasses. Mom always thought those glasses made her look old. To me, she looked like a teacher. In my room, Mom’s voice competed with the ticking of the clock. Being forced to focus on listening, I found a way to keep my marks up and compete with the other kids. When the teacher asked a question, I raised my hand with confidence. Teachers praised me for having a good memory. Reading removed my fear for my failing sight, reading also made me curious about other people’s challenges and how they managed. Though I could not use my eyes to fix on each passage, my mind lit up with every new book. True to what the doctor said, the worst came, but thanks to Mom, my sense of hearing now allows me to “see”. This was the most precious (珍贵的) gift from a mother to her child. 小题1:Why did the author and his parents keep silent on their way back home from hospital? A.They all wanted to have a good rest. B.The author didn’t do well in the exam. C.What the doctor said made them worried. D.They focused on the scenery along the road 小题2:How did the author manage to get high marks? A.By being confident B.By listening carefully. C.By getting help from his classmates. D.By reading as many books as possible. 小题3:We can learn from the text that . A.the author’s sight recovered finally B.reading made the author more sensitive C.the author’s mother didn’t work to look after him D.reading made the author not worry about his sight 小题4:Which of the following could be the title of the text? A.My eyesight trouble B.An unforgettable experience C.With ears wide open D.About Mother’s love
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【单选题】Job ()(满意) can add to my feeling of happiness, though I have to work extra hours.
A.
dissatisfaction
B.
disappointment
C.
construction
D.
satisfaction
【单选题】分度头的传动机构为(    )。
A.
齿轮传动机构
B.
螺旋传动机构  
C.
蜗杆传动机构  
D.
链传动机构
【简答题】5×40= 18×60= 1.73+2.07= 10-0.9= 400÷0.4= 1 2 + 1 2 = 2 3 - 1 3 = 1 5 + 1 4 = 3 4 - 1 2 = 1 6 - 1 7 =
【单选题】常用于铜绿假单胞菌感染的漱口溶液是
A.
0.3%醋酸溶液
B.
0.1%醋酸溶液
C.
1%一4%碳酸氢钠溶液
D.
2%一3%硼酸溶液
【简答题】计算下面各题,能简算的要简算. (1)( 1 5 + 1 3 )×15 (2) 4 7 × 5 9 + 3 7 × 5 9 (3) 1 3 × 5 16 × 3 5 (4)2.5×97×0.4 (5)1.25×97×8 (6)1.25×32×2.5×97 (7)0.36×101 (8)0.36×98 (9) 5 7 - 5 9 × 5 7 (10) 2 9 + 7 16 × 2 9 (11) 1 ...
【判断题】滚珠螺旋传动机构和普通螺旋传动机构都可以逆向自锁。
A.
正确
B.
错误
【简答题】直接写得数. 0.38+1.02= 4 5 -0.4= 3 8 × 8 27 = 3.5× 4 5 = 6.4÷0.8= 3÷ 1 3 = 90×10%= 1 2 ÷25%= 1÷ 1 7 = 1+80%= 1.25×8= 1÷3= 2.5×4÷1000= 11 8 × 8 11 =
【单选题】常用于真菌感染的漱口溶液是
A.
0.3%醋酸溶液
B.
0.1%醋酸溶液
C.
1%一4%碳酸氢钠溶液
D.
2%一3%硼酸溶液
【单选题】在醋酸的下列性质中,可以证明它是弱电解质的是   (   ) ①0.1mol·L -1 的醋酸溶液的pH约为3 ②醋酸易溶于水 ③0.1mol·L -1 的醋酸溶液10ml恰好与10ml0.1mol·L -1 的NaOH溶液完全反应 ④在相同条件下,醋酸溶液的导电性比盐酸的弱 ⑤在常温常压下,0.1mol·L -1 的醋酸钠溶液的pH大于7
A.
①②④
B.
③④⑤
C.
①④⑤
D.
②③④
【单选题】现有①0.1mol/L醋酸溶液;②0.1mol/L盐酸;③pH =' 1' 的醋酸溶液,分别加水稀释,使体积变为原来的10倍,对于稀释前后溶液的有关说法错误的是(     )
A.
稀释前,溶液 pH:①>② = ③
B.
稀释前,溶液中溶质的物质的量浓度:③>① =②
C.
稀释后,溶液 pH:①>② = ③
D.
稀释后,溶液中溶质的物质的量浓度:③>① =②
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