在变速换挡时利用离合器暂时分离（）的接合，来完成变换速度的需要。

患者，女性，50岁，反复咳嗽、咳痰6年，每逢冬季加重。2周来上述症状加重，并咳脓痰，体检双肺底可闻及湿性啰音。 此患者5年后逐渐出现呼吸困难，活动后加重，下列哪项检查所见，对判断呼吸困难的原因最有意义（）

A.桶状胸，叩诊过清音，肺肝界下移

B.X线透亮度增加，心影狭小

C.呼吸音减弱，呼气延长

D.心电图示肢体导联低电压

E.肺功能检查残气/肺总量>40%

While at the park one day, a woman sat down next to a man on a beach near a playground. “That’s my son over there,” she said, pointing to a little boy in a red sweater who was gliding(滑行) down the slide.  “He’s a fine-looking boy,” the man said. “That’s my son on the swing(秋千) in the blue sweater.” Then, looking at his watch, he called to his son,” What do you say if we go, Todd?” Todd pleaded(恳求), “Just five more minutes, Dad. please? Just five more minutes.” The man nodded and Todd continued to swing to his heart’s contently(尽兴地).

Minutes passed and the father stood and called again to his son. “Time to go now?” Again Todd pleaded, “Five more minutes, Dad. Just five more minutes.” The man smiled and said, “Okay.” “Oh, you are certainly a patient father,” the woman said. The man smiled and then said ,”My older son Tommy was killed by a drunken driver last year while he was riding his bike near here. I never spent much time with Tommy and now I’d give anything for just five more minutes with him. I’ve vowed(发誓) not to make the same mistake with Todd.” “He thinks he has five more minutes to swing. The truth is …I get five minutes to watch him play.”

根据短文内容，从题中所给的A、B、C、D四个选项中，选择最佳答案。（10分）

小题1:The woman’s son was________ .

A．in red

B．wearing a blue sweater

C．called Todd

D．playing on the swing小题2:According to the passage, the man had________ son(s) the year before.

A．one

B．two

C．three

D．four小题3: The woman thought the man was ________ with his son.

A．angry

B．strict

C．pleased

D．patient小题4:Tommy died when ________ .

A．hiking

B．swinging

C．cycling

D．driving小题5: Which of the following statements is NOT true?

A．The man felt guilty(内疚) about not to spending much time with Tommy.

B．The man didn’t allow Todd to swing for another five minutes.

C．The man’s older son Tommy had been dead for about a year.

D．The man would like to give anything for five more minutes with Tommy.

支饮、伏饮应与以下哪些疾病进行鉴别 （）

A.肺胀

B.喘证

C.哮病

D.胸痹

E.风水证

（共13分）A、B、C、D、E、F、G、L、I九种主族元素分布在三个不同的短周期，它们的原子序数依次增大，其中B、C、D为同一周期，A与E、B与G、D与L分别为同一主族，C、D、F三种元素的原子序数之和为28，F的质子数比D多5，D的最外层电子数是F的2倍，C和D的最外层电子数之和为11。请回答下列问题：

（1）以上八种元素中非金属所形成的最简单气态氢化物稳定性最弱的是（填化学式）____________，E、F、L所形成的简单离子的半径由大到小的顺序为（用离子符号表示）__   __ >      >        。

（2）由L、I两元素可按原子个数比1:1组成化合物X，化合物X中各原子均满足8电子的稳定结构，则X的电子式为                。固体化合物E₂D₂投入到化合物E₂L的水溶液中，只观察到有沉淀产生的，写出该反应的离子方程式为：                       。

（3）在10 L的密闭容器中，通入2mol LD₂气体和1 mol D₂气体，一定温度下反应后生成LD₃气体，当反应达到平衡时，D₂的浓度为0.01 mol·L^-1，同时放出约177 kJ的热量，则平衡时LD₂的转化率为      ；该反应的热化学方程式为                ；此时该反应的平衡常数K=          。

(4) 有人设想寻求合适的催化剂和电极材料，以C₂、A₂为电极反应物，以HCl—NH₄Cl溶液为电解质溶液制造新型燃料电池，试写出该电池的正极反应式        ；

文化经典，是一个民族文化的集中体现。经过千百年的______，文化经典世代相传而广受赞誉，足以说明其深厚的价值和无可替代的作用。

依次填入画横线部分最恰当的一项是（）。

A．精要；积淀

B．精髓；锤炼

C．精要；历练

D．精髓；沉淀