秦某，男性，72岁，干咳2年余，这些天，偶有咯血，身体潮热，盗汗，伴有面色潮红，舌红

慢性化率最高的病毒性肝炎是（）

A.甲型肝炎

B.乙型肝炎

C.丙型肝炎

D.丁型肝炎病毒单独感染

E.戊型肝炎

Flow control is a function that prevents network congestion by ensuring that (59) do not overwhelm (60) with data.

There are three commonly used methods for handling network congestion. (61) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (62) are used by receiving devices to help prevent their buffers from overflowing. (63) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

59（）

A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

关于假性痴呆的说法，哪项不对（）

A.常有强烈的精神创伤刺激

B.可见于癔症及反应性精神障碍

C.可见于抑郁症

D.一般预后较好

E.假性痴呆如不及时治疗常会变成真性痴呆

认购价、申购价、赎回价和紧急退出价格四种价格分别为客户进行理财产品（）交易时的价格。

A.认购

B.申购

C.赎回

D.紧急退出

ATN协议中，会聚子层CS被定义成两个子层，即【 】和公共部分会聚子层(CPCS)。