在山区、丘陵区、风沙区烧木炭、烧窑等造成新的水土流失的处以多少元的罚款？

具有解表清里功用的方剂是

A．葛根黄芩黄连汤

B．麻黄杏仁甘草石膏汤

C．凉膈散

D．小柴胡汤

E．竹叶石膏汤

在控制阀改付线的过程中，下列说法中错误的一项是（）。

A、不能在控制阀改付线过程开始就关掉控制阀上游阀

B、先慢慢打开一点控制阀付线

C、操作过程中要和内操密切联系

D、控制阀上下游阀的关闭和付线的打开没有先后顺序，可以一次性开大或关闭

常温下，某同学向100 mL H₂S饱和溶液中通入SO₂，所得溶液pH与加入气体体积（标况下的数据）变化如图所示。下列分析中，正确的是

A．b 点所对应的纵坐标数据为7

B．亚硫酸是比氢硫酸更弱的酸

C．原H₂S溶液的物质的量浓度为0.05 mol/L

D．b 点对应的溶液导电性最强

海洋行政主管部门在核准海洋工程环境影响报告书后，应当将核准后的环境影响报告书报( )批准。

A．上级海洋主管部门
B．军队部门
C．环境保护行政主管部门
D．当地人民政府

A transport layer protocol usually has several responsibilities. One is to create a process-to-processcommunication UDP uses ______ numbers to accomplish this. Another responsibility is to provide controlmechanisms at the transport level, UDP does this task at a very minimal level. There is no flow control mechanismand there is no ______ for received packet. UDP, however, does provide error control to some extent. If UDPdetects an error in the received packet, it will silently drop it.
The transport layer also provides a connection mechanism for the processes. The ______ must be able to sendstreams of data to the transport layer. It is the responsibility of the transport layer at ______ station to make theconnection with the receiver chop the stream into transportable units, number them, and send them one by one. Itis the responsibility of the transport layer at the receiving end to wait until all the different units belonging to thesame process have arrived, check and pass those that are ______ free, and deliver them to the receiving process asa stream.

A．hop

B．port

C．route

D．packet