引起感染性发热的根本原因是（） A.脱水 B.外源性致热原 C.产热增加

在空白处填入适当的单词、短语或句子补全对话。

A: Bill, I've been asked to dinner tonight. What time should I arrive for that?

B: Did they tell you __1__

A: Yes, they said the dinner would begin at seven.

B: Then __2__ before 7:00. But make sure you are not much earlier than the time.

A: Why?

B: That's just what it is here. Maybe they are still __3__ the dinner.

A: __4__.

B: For the first time, you can bring a small present. You don't want to show to everyone__5__. rich you

    are, do you?

A: No, __6__ . Thank you for your help.

B: That's all right. __7__ at the party.

小题1:某同学探究恒力做功和物体动能变化的关系，方案如图所示.他想用钩码的重力表示小车受到的合外力，为减小这种做法带来的误差，实验中要采取的两项措施是：

a                                                                             

b                                                                         

小题2:如图所示是某次实验中得到的一条纸带，其中A、B、C、                           D、E、F是计数点，相邻计数点间的时间间隔为T，距离如图。 则打B点时的速度为          ；要验证合外力的功与动能变化的关系，测得位移和速度后，还要测出的物理量有                          

以下哪项是虹膜睫状体挫伤所致的前房继发性出血最常见的并发症（）

A.并发性白内障

B.视盘水肿

C.黄斑囊样水肿

D.视神经萎缩

E.继发性青光眼

关于血浆代用液叙述错误的是（）

A.血浆代用液在有机体内有代替全血的作用

B.代血浆应不妨碍血型试验

C.不妨碍红血球的携氧功能

D.在血液循环系统内，可保留较长时间，易被机体吸收

E.不得在脏器组织中蓄积

套内分户用水点的给水压力不应小于（）MPa，入户管的给水压力不应大于（）Mpa。

A.0.05；0.3

B.0.1；0.35

C.0.1；0.3

D.0.05；0.35