为了节能，许多奥运场馆采用LED发光二极管照明．二极管的主要材料是（ ） A．纳

基金监管的原则具体表现为（）。

A.依法监管原则

B."三公"原则

C.自律在先和监管在后原则

D.监管的连续性和有效性原则

女性，60岁。自述突然心慌胸闷。急诊检查：心率120次/分，脉率110次/分，且心律不齐，心音强弱不定。考虑为

A．室性心动过速

B．室上性心动过速

C．窦性心动过速

D．室颤

E．房颤

1吨棉花比1吨石头轻．______．

下列八脉交会穴穴名与所通之脉相符的是（）。

A.内关通任脉

B.列缺通阴维脉

C.公孙通冲脉

D.申脉通督脉

E.外关通带脉

An internet is a combination of networks connected by (1). When a datagram goes from a source to a  (2), it will probably pass many (3) until it reaches the router attached to the destination network. A router receives a  (4) from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available (5) is the optimum pathway?

空白（4）处应选择（）

A.destination

B.resource

C.packet

D.source