中国宏观经济管理的手段主要包括( )A．激励手段 B．经济手段 C．必要的行政手段

乙烯装置中采用了旨在防止火灾爆炸发生、扩展的安全设施，主要包括（）。

A．阻火设备

B．防爆泄压装置

C．消音器

D．消防自动报警器

将胁痛病因分为外感、内伤两大类的是

A．呕吐黄水味苦
B．呕吐酸水绿水
C．泛吐清水
D．呕吐酸腐难闻
E．呕吐涎沫

休闲渔业

Flow control is a function that prevents network congestion by ensuring that (1) do not overwhelm (2) with data. There are three commonly used methods for handling network congestion. (3) is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (4) are used by receiving devices to help prevent their buffers from overflowing. (5) is a flow -control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.

3（）

A．Buffer

B．Source-quench messages

C．Buffering

D．Windowing

灼热，肢厥，躁扰谵妄，目睛上视，斑疹紫黑，舌绛苔少，脉细数。治宜：（）.

A.清宫汤送服安宫牛黄丸

B.清营汤送服安宫牛黄丸

C.犀角地黄汤送服紫雪丹

D.加减玉女煎送服至宝丹