出现胸骨左缘3～4肋间闻及Ⅲ～V级粗糙的全收缩期杂音，肺动脉二音亢进，最可能的疾病是

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。

Dear Sir,

I have to travel every day from So UK Road to the airport. Two buses travel along this route: No.49 and No.16. However, by the time No.16 reaches So UK Road, it is always full.__小题1:__

The timetable states that there are buses from So UK Road to the airport every ten minutes.__小题2:__ The instructions state that if there are empty seats on a bus, the bus must stop at every stop where people are waiting. __小题3:__

The instructions state that no bus may carry more than 40 seated passengers and 20 standing passengers. Yesterday, I was the first to get off the bus when it reached the airport. __小题4:__ There were 129 of them.

Clearly printed on the back of every bus is a sign that says “Maximum speed: 50mph.” ___小题5:__ Saturday morning a No. 49 bus traveled the distance in ten minutes, at an average speed of 60 mph. At times it must have done at least 80 or even 90 mph.

It is obvious that our bus companies have neither respect for the instructions nor consideration for their passengers. Can nothing be done about this?

Jerry

A．I counted the other passengers as they got off.

B．Why is it that half-empty buses go straight past me when I am standing at the bus stop?

C．The problem is that we have to pay more for our trip.

D．The distance from So UK Road to the airport is 10 miles. E. This leaves No.49 which sometimes has empty seats on it.

F. If this is so, why do I have to wait half an hour for a bus nearly every day?

组织的形成是（　　）

A．细胞分裂的结果

B．细胞分化的结果

C．细胞生长的结果

D．细胞体积增大的结果

请简述1941年左右日军的兵力配置部署。

[36——40] （ ）

有抑制骨髓造血功能的药物

A．羟氨苄青霉素
B．氯霉素
C．头孢他定
D．克拉维酸
E．红霉素

所谓存在飞碟——一种由外星人驾驶的不明身份飞行物已被证明只是个错觉。持怀疑态度的研究人员已证明，许多用来显示飞碟的照片实际上是拙劣的伪造品，或对地球物像，如云、鸟、测候气球或小型私人飞机的曲解。 若上述照片的情况正如本文所说，以下哪一条是对结论的最有力的反对

A．不是所有的不明身份飞行物都可被最后确定为人造物体。

B．一些飞碟照片是伪造的，这个事实并不能全盘否认这种现象的存在。

C．一些声称见过飞碟的人并没有明显的撒谎动机。

D．由于宇宙的浩大和复杂，只有地球上存在生物似乎是不可能的。

E．对飞碟持怀疑态度的研究人员在工作中不可避免地带有偏见和先入之见。