题目内容

下列哪项不能作为确诊妊娠合并心脏病的依据：

A. 舒张期杂音
B. Ⅳ级或Ⅳ级以上收缩期杂音，性质粗糙，时限较长
C. 心房颤动
D. 舒张期奔马律
E. 室性早搏

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妊娠合并肝炎对胎儿的影响哪项不正确：

A. 妊娠早期胎儿畸形发生率增高
B. 妊娠中期可发生流产、死胎
C. 妊娠晚期可发生早产、死产以及新生儿死亡
D. 通过胎盘传播的肝炎病毒除乙型肝炎外还有少量甲型肝炎
E. 胎儿通过母婴传播途径可以受到感染

Virtual reality (or VR (1) ) is kind of a buzzword these days in computer graphics.VR is artificial reality created by a computer that is so enveloping that it is perceived by the mind as being truly real.VR exists in many (2) .A traditional view of virtual reality uses headsets and data gloves.The headset serves as the eyes and ears to your virtual world,projecting sights and sounds generated by the computer.The data glove becomes your hand,enabling you to interact with this (3) world.As you move your head around,the computer will track your motion and display the right image.VR is the most demanding (4) for computer graphics,requiring hardware and software capable of supporting realtime 3D (5) .

A. dummy
B. simulated
C. fictitious
D. invented

新生儿发病率最低的染色体疾病是

A. 13-三体综合征
B. 21-三体综合征
C. Klinefelter综合征
D. Turner综合征
E. 18-三体综合征

Originally introduced by Netscape Communications, (66) are a general mechanism which HTTP Server side applications, such as CGI (67) , can use to both store and retrieve information on the HTTP (68) side of the connection. Basically, Cookies can be used to compensate for the (69) nature of HTTE The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (70) .

A. Browsers
B. Cookies
Connections
D. Scripts