怎样调节氨冷器的温度？

下列关于细胞周期的叙述，不正确的是[ ]

A．原癌基因主要负责调节细胞周期

B．温度和pH影响动物细胞培养的细胞周期

C．B细胞受抗原刺激后细胞周期缩短

D．已分化的细胞都失去细胞周期

《公安机关人民警察奖励条令》第三条规定，公安机关奖励工作的原则有（）。

A．实事求是，按绩奖励

B．发扬民主，贯彻群众路线

C．公开、公平、公正

D．精神鼓励与物质奖励相结合，以精神鼓励为主

动词填空，阅读下面短文，用括号内所给动词的适当形式填空(必要时可加情态动词或助动词)。    

     We 1._____ (be) in America for three days.We 2._____ (have) a good time here now. America

is the third largest country in the world．There is so much 3._____ (see) that it's impossible for me

4._____ (tell) you everything．  

     During the past three days we 5._____(visit) many places of interest around New York. I'd like

6._____ (spend) more time here but we 7._____ (fly) to another state of Wyoming to visit Yellow

stone National Park tomorrow, the park is known for its wildlife and geothermal features．The Old

Faithful Geyser is one of the most popular features in the park. It is said (据说)that words 8._____

(not describe ) the beauty of the park. Now we are busy9._____ (pack) our bags so that we will

not lose time when we leave．I hope we can enjoy ourselves at Yellowstone National Park this time

tomorrow. I'm looking forward to 10._____(go) there.

泌尿系损伤常见的器官是

A．阴茎

B． * *

C．膀胱

D．输尿管

E．肾

女性，60岁，有血吸虫病史，近半年来大便出血，鲜红色，肛门指诊：距齿状线6cm处可扪及2.5cm高低不平肿块，指套染血

A．肛裂
B．内痔
C．外痔
D．直肠癌
E．直肠息肉