档案工作“四同时”是指哪“四同时”？

在数据库的三级模式结构中描述数据库中全体数据的全局逻辑结构和特性的是( )。

A．外模式

B．内模式

C．存储模式

D．模式

A few years ago, an Englishman called Roy Jones went on holiday to a small seaside town in the west of England. He was swimming in the sea one day when, as he opened his mouth, his false teeth fell out and floated away. The following year, Mr. Jones returned to the same town. As he was having dinner in a local café one evening, he mentioned the story of his lost teeth to the manager. The manager looked surprised. He explained that he had found a set of false teeth on the beach last month. Then he asked Roy Jones if he wanted to try them on. “OK”, said Mr. Jones. “I suppose it won’t do any harm.” When the manager brought him the teeth, Mr. Jones put them into his mouth, and laughed and laughed. They were his.

In 1987, an American couple called Jane and Robert Bentley went for a picnic on a beach in California. When they returned home, Mrs. Bentley realized that she had lost her wedding ring. It wasn’t a lot of money but it was valuable to Jane Bentley. The Bentleys drove straight back to the beach, and searched for the ring for three hours, but could not find it. A few months later, Mr. Bentley went fishing off the same beach. As he pulled a large crab out of the sea, he noticed that there was something attached to one of its claws. It was his wife’s wedding ring!

At the end of the 19^th century, a young woman called Rose Harcourt was on her honeymoon in Barmouth, North Wales, when she lost a gold bracelet her husband had given her as a wedding gift. Feeling very upset, she went straight to the police stations and asked if anyone had found her bracelet. Unfortunately, no one had. Twenty-five years later, the Harcourts returned to Barmouth to celebrate their wedding anniversary. They were sitting on the beach one day when Mrs. Harcourt noticed something gold in the sand by the edge of the sea. She walked down to see what it was, and discovered her gold bracelet that had been missing for 25 years.

小题1:Roy Jones lost his false teeth __________ .

A．when he opened his mouth to have some food

B．when he opened his mouth as he was swimming

C．The moment he got into the sea to start swimming

D．when he was having his holiday at the sea side小题2:Jane Bentley’s wedding ring was missing for __________ before it was found.

A．three hours

B．almost a year

C．several months

D．25 years小题3:From the story of the Harcourts we may understand the underlined “to celebrate their wedding anniversary” may be close in meaning to __________ .

A．having a wedding again

B．experiencing their honeymoon feelings again

C．having a honeymoon again

D．joining in the local celebrations

土霉素的产生菌属于（）

A.细菌

B.霉菌

C.链霉菌

D.放线菌

下列哪一症状不属惊风八候（）

A.颤

B.掣

C.窜

D.抖

E.视

正确评估患者的听觉功能情况，掌握评估对象及时机，不包括（）

A.一般患者入院时评估

B.老年患者重点评估

C.耳部疾患、耳部术后患者，住院期间每天评估一次

D.听神经瘤术前术后评估

E.儿童患者每周评估