问题
单项选择题
根管充填的指征如下，除外
A．无自觉症状
B．根管内无渗出
C．细菌培养阴性
D．取出棉捻无臭物
E．检查无异常所见
答案
参考答案：C
解析：根管充填的指征包括无自觉症状，临床检查无异常，根管内无渗出，取出棉捻无臭物即可，而不需做细菌培养。
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根管充填的指征如下，除外
A．无自觉症状
B．根管内无渗出
C．细菌培养阴性
D．取出棉捻无臭物
E．检查无异常所见
参考答案：C
解析：根管充填的指征包括无自觉症状，临床检查无异常，根管内无渗出，取出棉捻无臭物即可，而不需做细菌培养。
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| Mother's Day is celebrated (庆祝) in the USA.It's also a holiday in some 1 countries. It's on the second Sunday in May. It is a day to thank 2 .On that day mothers usually 3 flowers and cards. On the cards,children will write "Thanks,Mum" ,"To the best mother in the world", "Best wishes for Mother's Day" and so on. Where does the idea for the holiday 4 ?We should thank Miss Anna M. Jarvis. She brought up the idea of having such a day. She lived in West Virginia.Her mother died 5 May 9,1905. She 6 her mother. She wrote letters to some important persons. In her letters she asked them to decide a day for 7 mothers. Then Mother's Day was made on the second Sunday in May by the USA 8 1913. On Mother's Day,children give presents to their mothers, 9 the whole family go out and try to do something 10 for their mothers to make them happy. | |||
| ( )1. A. the others ( )2. A. fathers ( )3. A.buy ( )4. A. be from ( )5. A. on ( )6. A. didn't love ( )7. A.both ( )8. A.in ( )9. A.but ( )10.A. nice | B. another B. teachers B.get B.is from B.in B. forgot B.all B.on B.or B. new | C.others C. mothers C.send C. come from C. at C. hated (恨) C.their C.at C.than C.different | D.other D. parents D.give D. came from D. for D. had a deep love for D.every D.by D.because D. important |