反应性关节炎的临床表现不包括（） A.虹膜睫状体炎 B.主动脉瓣关闭不全 C.膀胱炎

“亲亲得相首匿”原则，最早确立于

A．西汉宣帝时期

B．曹魏时期

C．东汉宣帝时期

D．隋代初年

患者男性，40岁。头痛半年，用力时加重，多见于清晨及晚间，常伴有恶心，有时呕吐。经CT检查诊断为颅内占位性病变、颅内压增高，为行手术收入院。入院后第2天，因便秘、用力排便，突然出现剧烈头痛、呕吐，右侧肢体瘫痪，随即意识丧失。体检：血压178／105mmHg，呼吸17次／分钟，脉搏54次／分钟。左侧瞳孔散大，对光反应消失。

治疗呼吸道梗阻最有效的措施是（）

A.通过鼻腔，口腔吸痰

B.鼻腔置管，氧气吸入

C.气管切开

D.从口腔行气管插管

E.用开口器侧外位引流

由于房地的不可分性，因此在房地产交易契约中，无论是否划分房产的价格和土地的价格，都以房地产交易契约价格总额为计税依据。土地使用权交换、房屋交换时，以所交换的土地使用权、房屋的价格的差额为计税依据。 ( )

关于妊娠瘤下列哪一项是正确的（）

A.妊娠瘤是一种良性肿瘤

B.妊娠瘤发生于多个牙的牙龈 * *

C.有自发性出血倾向

D.分娩后，妊娠瘤可自行消退

E.不能手术切除

Certificates are (66) documents attesting to the (67) of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to (68) someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a certificate also contains an (69) date, the name, of the CA that issued the certificate, a serial number, and perhaps other information. Most importantly, it contains the digital (70) of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.

A．signature

B．mark

C．stamp

D．hypertext