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【简答题】
Dick was born in a poor family. His father had a small boat and went fishing in the morning and sold the fish in the market in the afternoon. Then he bought some food for his family. When winter came, they were often hungry. One morning the hungry man fell into the river and wasn’t found. Dick’s mother left her three-year-old son without saying good-bye. His aunt had to look after him. Twenty years passed. Dick became a tall, strong man. He found work on a farm. He worked hard and wanted to get more money. He often went to see his aunt with some nice presents. The woman was very happy but one day she died in a traffic accident. The young man was very sad. After he buried her, he decided to buy a beautiful tombstone(墓碑)for her. He went to town and came in a shop, but all the tombstones were too expensive. He asked, “Do you sell an old tombstone, sir?” “Yes, we do, sir, ” answered the shopkeeper. “Is it as expensive as the new one?” “No, it’s much cheaper,” said the man. “But another name was engraved (刻) on it.” “It doesn’t matter, ” said Dick. “My aunt couldn’t read.” 小题1: If , the family members were hungry. A.Dick’s father could catch no fish in winter B.Dick’s father had a boat in winter C.Dick’s father had to look after him in winter D.no food was sold in winter 小题2:Dick wanted to get more money to . A.marry a wife B.give his aunt nice presents C.buy a farm D.build a house 小题3:Dick often went to see his aunt because . A.she felt lonely B.she was often ill C.she had no children D.with her help he grew up 小题4:Dick wanted to buy an old tombstone because . A.he didn’t had enough money to buy a new one B.his aunt couldn’t read whose name was engraved C.his aunt wasn’t going to mind it D.nobody knew what his aunt’s name was
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【多选题】关于根折的描述,错误的是:
A.
根折的主要症状可有牙齿松动、牙冠稍显伸长,有咬合创伤
B.
根尖部1/3的根折,临床上几乎不松动,又无明显咬合创伤,也应预防性进行固定
C.
近冠部1/3的年轻恒牙根折,因其预后较差,应即刻拔除折断牙齿
D.
根中部1/3折断可采用固定术将患牙固定2—3个月,定期复诊作x线片检查断端愈合情况
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A.
越小
B.
越大
C.
无关
D.
无法判断
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A.
(0,3)
B.
(2 3 ,3)
C.
(0,4)
D.
(0,2 2 )
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A.
自然搜索
B.
不定期搜索
C.
定期搜索
D.
提交网站搜索
【单选题】已知点P是椭圆: x2 16 + y2 8 =1(x≠0,y≠0)上的动点,F 1 ,F 2 是椭圆的两个焦点,O是坐标原点,若M是∠F 1 PF 2 的角平分线上一点,且 F 1 M ? MP =0,则|OM|的取值范围是(  )
A.
[0,3)
B.
(0,2 2 )
C.
[2 2 ,3)
D.
[0,4]
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【单选题】在期望值相同的条件下,标准离差越大的方案,则风险( )。
A.
越大
B.
越小
C.
无法判断
D.
两者无关
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A.
[0, 2 2 ]
B.
[0,2)
C.
( 1 2 , 2 2 ]
D.
[0, 2 ]
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A.
(2k-9 ,2 k-8]
B.
(2 k-8 -1, 2k-9-1]
C.
(28-k -1, 29-k-1]
D.
(27-k -1, 28-k-1]
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