使用增感屏可使A．影像清晰度上升B．影像对比度减小C．影像分辨力增加D．影像斑点现象

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      When Mr David retired (退休), he bought a small house in a village near the sea. He liked it and hoped to live

a quiet life in it.

      But to his great surprise, many tourists came to see his house in summer holidays, for it was the most

interesting building in the village. From morning to night there were tourists outside the house. They kept looking

into the rooms through the windows and many of them even went into Mr David's garden. This was too much

for Mr David. He decided to drive the visitors away. So he put a notice on the window. The notice said: "If you

want to satisfy your curiosity (好奇心), came in and look round. Price: twenty dollars." Mr David was sure that

the visitors would stop coming, but he was wrong. More and more visitors came and Mr David had to spend

every day showing them around his house. "I came here to retire, not to work as a guide." he said angrily. In the

end, he sold the house and moved away.

1. Mr David's house was ________ that many tourists came to see it.[ ]

A. so small

B. so quiet

C. so interesting

D. such interesting

2. Mr David put a notice on the window in order ________. [ ]

A. to drive the visitors away

B. to satisfy the visitor's curiosity

C. to let visitors come in and look round

D. to get some money out of the visitors

3. The notice made the visitors ________. [ ]

A. more interested in his house

B. lose interest in his house

C. angry at the unfair price

D. feel happy about the price

4. After Mr David put up the notice ________. [ ]

A. the visitors didn't come any longer

B. fewer and fewer visitors came to see his house

C. more and more tourists came for a visit

D. no tourists would pay the money for a visit

5. At last he had to sell his house and move away because ________. [ ]

A. he did not like it at all

B. he could not work as a guide

C. he made enough money and wanted to buy a new expensive house

D. he could not live a quiet life in it

25岁，女，因肺炎行抗生素治疗。近1周外阴痒，查 * * 黏膜覆以白色膜状物，擦除后露出红肿黏膜面。恰当治疗措施应是（）

A.局部用尼尔雌醇片及克林霉素软膏

B.局部放置尼尔雌醇片

C.局部放置甲硝唑片

D.局部用咪康唑栓剂

E.局部用0.5％醋酸冲洗

在同一平面内，有8条互不重合的直线，l₁，l₂，l₃…l₈，若l₁⊥l₂，l₂∥l₃，l₃⊥l₄，l₄∥l₅…以此类推，则l₁和l₈的位置关系是（　　）

A．平行

B．垂直

C．平行或垂直

D．无法确定

先天性风疹综合征引起的新生儿畸形有哪些（）

A.先天性心脏病（动脉导管末闭、肺动脉狭窄

B.糖尿病

C.眼部畸形（白内障、青光眼或视网膜病）

D.神经系统异常（小头畸形、智力低下）

E.骨发育障碍

患者，男，67岁，戴下颌活动义齿5年，因咀嚼无力前来就诊。检查：左下中切牙，左下后牙全部缺失，右下中切牙，右下第二前磨牙，第一、第三磨牙缺失，右下第二磨牙轻度向近中倾斜，余留牙稳固，形态正常，左侧牙槽嵴低平，右侧牙槽嵴丰满度适中，对颌为天然牙。缺失牙已行可摘局部义齿修复，义齿固位不良，人工牙面磨耗严重，右下第二磨牙放置近中支托三臂卡环，右下第一前磨牙放置远中支托三臂卡环，左下尖牙放置RPI组合卡，双侧舌板连接。

义齿出现咀嚼无力的最可能原因是（）

A.义齿固位力差

B.咬合过低

C.基托伸展不够

D.卡环类型不对

E.义齿出现早接触