下列疾病中， ICD植入的Ⅰ类适应证包括（） A.特发性室性心动过速 B.扩张型

先天性愚型易伴发下列哪些畸形（）

A.先天性心脏病

B.胃肠道畸形、十二指肠闭锁

C.患儿T细胞免疫功能低下，易患呼吸道感染

D.白血病的发病率较群体大20倍

E.性早熟

若有以下程序：#include ＜iostream＞using namespace std;int f(){ static int i = O; ints= 1; s+=i; i++; return s;}int main(){ int i, a =0; for(i=0;i＜5;i++)a+=f(); cout＜＜a＜＜end1; return 0;}程序运行后，输出的结果是( )。

A．20

B．24

C．25

D．15

托马斯•弗里德曼认为获取信息的（）性改变了人类的思考方式，就好像计算器发明后计算好的人不再占明显优势，记忆力好也不再作为评判人聪明的（）标准。填入括号部分最恰当的一项是（）。

A.便捷；必然

B.公平；客观

C.对称；绝对

D.广泛；首要

Networks can be interconnected by different devices. In the physical layer, networks can be connected by (41) or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer. They can accept (42) , examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer, we have routers that can connect two networks. If two networks have (43) network layer, the router may be able to translate between the packet formats. In the transport layer we find transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message (44) . As an example, gateways between Internet E-mail and X.400 E-mail must (45) the E-mail message and change various header fields.

A．analyze

B．parse

C．delete

D．create

开创脏腑证治先河的医家是宋代的（），其代表著作是（）。