R8TDD特殊子帧配置一共有几种配置（） A.3 B.5 C.7 D.9

在百米赛跑中，站在终点的计时员，假如在听到枪声时才计时，他记录下来的成绩有多大的误差？（当时空气中的声速为340 m/s）

患儿女，5岁。生后哭闹后有青紫，6个月后青紫渐明显，平时喜蹲踞。哭闹时有突发呼吸急促，青紫加重，严重时伴昏厥。此次因同样发作急诊住院。体检：口唇，指、趾甲青紫，杵状指、趾，胸骨左缘第2～3肋间闻及Ⅲ～Ⅳ级收缩期喷射性杂音，肺动脉瓣第2音减弱。

此患儿最可能的诊断为（）

A.大动脉转位

B.单纯肺动脉狭窄

C.法洛四联症

D.室间隔缺损伴重度肺动脉高压

E.房间隔缺损伴轻度肺动脉狭窄

雷诺五联征

A．胆总管结石
B．胆囊结石
C．急性胆囊炎
D．胆道蛔虫病
E．急性梗阻性化脓性胆管炎

活性污泥外观似棉絮状，亦称絮粒或绒粒，有良好的沉降性能。

In January 2003, the Medusco Investment firm has decided to present its performance history in compliance with the Global Investment Performance Standards (GILES). Medusco was formed on January 1, 1992, and has never before presented its performance results in compliance with the GIPS standards. Which of the following actions must Medusco take in order to claim GIPS compliance（）

A. Present GIPS - compliant performance results for the 5 - year period from January 1, 1998, through December 31, 2002, and report five additional years of non - GIPS - compliant performance with a disclosure explaining why the performance in the earlier years is not GIPS - compliant.

B. Retroactively comply with GIPS for periods after January 1 , 2000, and report non - GIPS - compliant performance results for the periods January 1, 1993, through December 31, 1999, with a disclosure explaining why these earlier years are not GIPS -compliant.

C. Present GIPS- compliant performance results for the 5 -year period from January 1, 1998, through December 31, 2002.