患者,男,23岁,月前因外伤致上前牙折断,于外院做治疗。口腔检查见左上中切牙牙冠横折

题型:单项选择题 共用题干题

问题:

患者,男,23岁,月前因外伤致上前牙折断,于外院做治疗。口腔检查见左上中切牙牙冠横折,断面位于龈上2mm。根管口暂封。叩(~),松(~),牙龈及咬合正常。X线片显示根尖无暗影,根管治疗完善。

桩核预备时,切端应为烤瓷冠留出的空间是()

A.3.0mm

B.2.5mm

C.2.0mm

D.1.0mm

E.以上都不是

考点:口腔修复(医学高级)口腔修复综合练习口腔修复综合练习题库
题型:单项选择题 共用题干题

阅读这篇报道,将文章后面的句子按正确的顺序排列。

       A News Report

       Crew saved in dramtic rescue

       By Gorden Lee

       Air-sea rescue units from Shunde, Guangdong Province, and Hong Kong saved the lives of 23

seamen in the South China Sea yesterday.

       The container ship, the "Krameria", registered in Panama, was on its way to Hong Kong from

Singapore when it sent out a distress(求救)call at 1: 30 p.m. The ship reported that it was sinking

after it had a serious damage when hit by Typhon Jasmine earlier in the morning.

       Working together, two helicopters from Shunde and an aeroplane from Hong Kong were sent to

the ship, located about four hundred and fifty kilometres south-west of Hong Kong. The helicopters

winched(用绞盘拉)the crew to safety, while the aeroplane provided air refueling support.

       The rescue of the crew took over one hour, as the hard work was interrupted by strong winds

and high seas. Five crew members were injured. All crew members were taken to hospital in Shunde

for treatment, but only one stayed overnight.

       Yesterday's rescue was the second joint mission involving air-sea rescue units from Shunde and

Hong Kong this year. Last May, the units successfully found a missing fishing boat.

       The "Krameria" reported that a water pipe had burst in the engine room. Early reports around

noon suggested that the crew had the flooding under control, but later the captain radioed that the ship

was filling with water. The rough seas made it impossible for lifeboats to be used.

       The Director of Joinst Missions, Ma Jinshan, was delighted with the success of the rescue. "It was

a major rescue in very dangerous conditions. We are pleased that it went so well."

       The "Krameria" is believed to have sunk shortly after the rescue. Yesterday evening, ships in the

area reported seeing containers floating on the water.

       Read and put the events in the order they happened.

A. The crew were winched to safety.

B. The reporter wrote the newspaper article.

C. The captain reported that the flooding was under control.

D. The reporter interviewed Ma Jinshan.

E. The crew members were taken to hospital.

F. The missing fishing boat was found.

G. The helicopters left Shunde.

H. The ship was hit by Typhoon Jasmine.

I. The captain sent out a distress call because the ship was sinking.

J. The joint rescue system was introduced.

1. ( ) → 2. ( ) → 3. (     ) → 4. (     ) → 5. (     )

      ↓

10. (     ) ←9. (     ) ← 8. ( ) ← 7. ( ) ←6. (     )

题型:单项选择题 共用题干题

从09年开始上涨的大蒜价格今年继续飞涨,以前买一堆大蒜的支出,现在只能买一头,网友戏称“蒜你狠”。造成大蒜价格大幅度上涨的原因可能包括:(   )

①社会劳动生产率提高,商品价值量增大    ②由于运输等原因,成本上升

③市场供求关系不对称,属于供过于求      ④世界经济回暖,出口增加,内销减少

⑤市场炒作

A.①②③④

B.②③④

C.③④⑤

D.②④⑤

题型:单项选择题 共用题干题

施工速度快且成本较低的不开槽管道施工方法是()。

A.密闭式顶管法

B.盾构法

C.定向钻法

D.夯管法

题型:单项选择题 共用题干题

皮带机输送要()

A、机头有防护栏

B、急停开关灵活可靠

C、转载点喷雾齐全有效

D、机尾有防护罩

题型:单项选择题 共用题干题

案例三:小崔打算五年后买房,计划购买一套面积在90平方米左右的普通住宅。目前小崔有存款2万元;其2008年的年收入预计约为15万元,每年的储蓄比率为40%,投资报酬率为15%。小崔准备在买房时向银行申请20年期的按揭,预计当时的房贷利率为6%。
根据案例三,回答13~18题:

购房时,小崔房屋贷款占总房价的比率为( )。

A.46%

B.70%

C.76%

D.80%

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