属于C-苷的是( )A．大豆素 B．葛根素 C．大豆苷 D．黄芩苷 E．芦丁

HIV中特异性最高的蛋白是（）

A.包膜糖蛋白（gp120）

B.包膜糖蛋白（gp41）

C.核衣壳蛋白（p7）

D.内膜蛋白（p17）

E.衣壳蛋白（p24）

如图所示为一物体做匀变速直线运动的速度-时间图象，根据图线做出的以下几个判断中，正确的是

A．物体始终沿正方向运动

B．物体先沿负方向运动，在t=2s后开始沿正方向运动

C．在t=2s前物体位于出发点负方向上，在t=2s后位于出发点正方向上

D．在t=2s时，物体距出发点最远

Traditional IP packet forwarding analyzes the____(1)____IP address contained in the network layer header of each packet as the packet travels from its source to its final destination．A router analyzes the destination IP address independently at each hop in the network．Dynamic ____(2)____protocols or static configuration builds the database needed to analyze the destination IP address(the routing table)．The process of implementing traditional IP routing also is called hop—by—hop destination—based____(3)____routing．Although successful，and obviously widely deployed，certain restrictions，which have been realized for some time，exist for this method of packet forwarding that diminish its____(4)____．New techniques are therefore required to address and expand the functionality of an IP—based network infrastructure．This first chapter concentrate on identifying these restrictions and presents a rew，architecture，known as multipIeprotocol____(5)____switching，that provides solutions to some of these restrictions．

(1)

A．datagram

B．destination

C．connection

D．service

每年年末，各单位应依据现有各加气站本年度的销售情况，以及（）的建站投产计划，编制出下一年用气量的年度需求计划。

A、本年度

B、上一年

C、下一年

D、未来几年

在办理代理业务中，利用存款证明书骗取客户存款的，根据新的员工违规处理办法，应给予（）处分。

A、警告

B、记过

C、撤职

D、开除