并联电阻的作用是（）。A．分频 B．增大电阻 C．分流 D．分压

Once there was an    小题1:   between the colors. Each color thought it was the best and most important. So each color looked down upon others. Here are their debates.

Green said: “Clearly I am the most important. I am the    小题2:  of life and hope. I’m the color of grass, trees and leaves.    小题3:   me, all animals would die.”

Yellow laughed: “I bring happiness and warmth into the world. Every time people look at a yellow sunflower, they start to smile. Without me there    小题4:   be no fun.”

Orange shouted: “I am the color of    小题5:  and strength. I have the most important vitamins (维生素). Think of carrots,    小题6:  and oranges. When I appear in the sky, everyone is shocked at my beauty and nobody gives another thought to any of you.”

Red could no    小题7:   stand it, “I am the color of danger and bravery. I am willing to fight for a cause. I bring fire into the blood.”

Their voices   小题8:   louder and louder. The thunder(雷) got angry and the rain started to pour. When they became calm, the rain said, “You foolish colors. Don’t you know that each of you is unique (独一无二)? If you don’t agree, just follow me.” They did as the rain told   小题9:   and together made the most    小题10:   rainbow (彩虹).

女性，28岁，新婚，尿频、尿急尿痛3天，肉眼血尿1天，无发热、无腰痛，首先要完善的检查是（）。

A.泌尿系超声

B.血常规

C.尿常规

D.CT

E.造影

下行用扰码来区分UE，上行用扰码来区分小区。（）

CT机的运行环境湿度要求是（）

A.30%～45%

B.35%～50%

C.40%～65%

D.45%～70%

E.50%～75%

链霉素的特征反应是

A．三氯化锑反应

B．硫色素反应

C．重氮化-偶合反应

D．麦芽酚反应

E．差向异构反应