当浮阀塔盘上浮阀脱落太多时，会造成淹塔，气相走短路。

A young man was going to finish school. For a long time he was looking forward to getting a beautiful sports car. He knew his father could well afford it, so he told him all he wanted.

Then on the morning of his graduation, his father called him into his study. His father told him how proud he was to have such a fine son, and told him how much he loved him. He handed his son a beautiful gift box. To his surprise, the young man opened the box and found a lovely Bible（圣经）with his name on it. Angrily, he said to his father “With all your money you give me a Bible?” He then rushed out of the house, leaving the Bible.

Many years passed and the young man was very successful in business. He had a beautiful home and a wonderful family. He thought he should go to see his father. He had not seen him since that graduation day. Before he could make arrangements（安排）, he received a phone telling him his father had passed away. He had to come home immediately and take care of the things that his father left him.

When he began to search through his father's important papers, he saw the still new Bible, just as he had left it years ago. He opened the Bible and began to turn the pages. As he was reading, a car key with a tag（标牌） dropped from the back of the Bible. On the tag was the date of his graduation, and the words “PAID IN FULL”. Sadness and regret filled his heart.

根据短文内容，选择最佳答案。

小题1:What did the young man want to get from his father?

A. A sports car.       B. A beautiful bike.       C. A lovely Bible.

小题2:From the passage, we know the young man’s father was ________.

A. poor            B. rich                C. careless

小题3:The young man was angry with his father because _______.

A. he thought he only got a Bible      

B. he had to stay in his study

C. his father couldn't afford a car

小题4:The young man knew about his father’s death when _________.

A. someone wrote to him           

B. someone telephoned him   

C. he went back home

小题5:The words “PAID IN FULL” may mean _________ in Chinese.

A. 分期付款　　　　 B. 全款付清　　　　    C. 抵押付款

某二元酸（化学式H₂A）在水中的电离方程式是：H₂A = H⁺ + HA^－，HA^－ H⁺+A^2－，又知0.1mol·L^－1NaHA溶液的pH = 2。则下列说法不正确的是

A.因为A^2－+H₂O  HA^－+OH^－，所以Na₂A溶液显碱性

B.0.1mol·L^-1 H₂A溶液中氢离子的物质的量浓度为0.11 mol·L^－1

C.NaHA溶液中各种离子浓度的关系是c(Na⁺ ) > c(HA^－) > c(H⁺) > c(A^2－) > c(OH^－)

D.在NaHA溶液中，HA^－电离的趋势大于其水解的趋势

患者，男，45岁，8天前因咽痛、发热自行口服抗生素，近2日出现张口困难、吞咽梗阻、呼吸不畅、左颈部疼痛，发热加重。有糖尿病史。体检：开口一横指，左侧扁桃体、咽侧壁向中线移位，扁桃体隐窝口无脓，左下颌角及下颌下肿胀、压痛。

该患者出现张口困难，说明病变波及（）

A.翼外肌

B.翼内肌

C.茎突后间隙

D.茎突前间隙

E.咬肌

F.下牙槽神经

一般情况下，齿轮及轴承加（）

A、润滑剂

B、润滑油

C、润滑脂

D、润滑油脂

下述填补部位不正确的是（）

A.妨碍义齿就位的软组织倒凹

B.骨尖处

C.未愈合的伤口和硬区

D.卡环固位臂进入基牙的倒凹区

E.基托覆盖区内所有余留面的倒凹及龈缘区