患儿发热，随后出现呕吐和意识障碍。应首先考虑的是 A．病毒性脑炎 B．尿毒症 C．癫

患者，男性，30岁，运动后突然出现右侧腰背部疼痛，难以忍受，大汗淋漓，查体：腹平软，无压痛，右侧腰部叩击痛阳性。

患者诊断为输尿管结石，此患者首先应采取的措施（）

A.解痉，止痛

B.抗炎输液治疗

C.禁饮食并留置胃管

D.行急诊探查术

E.中药治疗

我国的国防战略方针是积极防御，属于（）。

A.积极防御

B.消极防御

C.扩张型国防

D.自卫型国防

A little boy invited his mother to attend his school’s first teacher-parent meeting. To the little boy’s (1) , she said she would go. This (2) be the first time that his classmates and teacher (3) his mother and he felt (4) of her appearance. Although she was a beautiful woman, there was a severe sear (疤痕) that (5) nearly the entire right side of her face. The boy never wanted to (6) why or how she got the sear.At the meeting, the people were (7) by the kindness and natural beauty of his mother (8) the sear, but the little boy was still embarrassed (尴尬) and (9) himself from everyone. He did, however, get within (10) of a conversation between his mother and his teacher.The teacher asked (11) ," How did you get the scar on your face"The mother replied, " (12) my son was a baby, he was in a room that caught fire. Everyone was (13) afraid to go in because the fire was (14) , so I went in. As I was running toward his bed, I saw a long piece of wood coming down and I placed myself over him trying to protect him. I was knocked (15) but fortunately, a fireman came in and saved both of us. " She (16) the burned side of her face. "This scar will be (17) , but to this day, I have never (18) what I did. "At this moment, the little boy came out running toward his mother with tears in his eyes. He held her in his arms and felt a great (19) of the sacrifice (牺牲) that his mother had made for him. He held her hand (20) for the rest of the day.

第（20）空应选择（）

A．quietly 

B．slightly 

C．tightly 

D．suddenly

交流电路电压、电流的相位差为正值时，电路称为容性电路。（）

水性凝胶的基质（）

A.CMC-Na

B.PEG4000

C.甘油

D.羊毛脂

E.吐温类