Twinge 发表于 2025-3-21 18:19:05

书目名称International Tourism影响因子(影响力)<br>        http://figure.impactfactor.cn/if/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism影响因子(影响力)学科排名<br>        http://figure.impactfactor.cn/ifr/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism网络公开度<br>        http://figure.impactfactor.cn/at/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism网络公开度学科排名<br>        http://figure.impactfactor.cn/atr/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism被引频次<br>        http://figure.impactfactor.cn/tc/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism被引频次学科排名<br>        http://figure.impactfactor.cn/tcr/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism年度引用<br>        http://figure.impactfactor.cn/ii/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism年度引用学科排名<br>        http://figure.impactfactor.cn/iir/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism读者反馈<br>        http://figure.impactfactor.cn/5y/?ISSN=BK0472079<br><br>        <br><br>书目名称International Tourism读者反馈学科排名<br>        http://figure.impactfactor.cn/5yr/?ISSN=BK0472079<br><br>        <br><br>

指数 发表于 2025-3-21 22:33:31

François Vellas,Lionel Bécherelhe need to determine environmental concentration and hence, potential exposure). The massive inputs of science and technology involved in this process have been fuelled and motivated by the need for regulation, legislation and the setting of environmental quality standards. The output from risk asse

arrogant 发表于 2025-3-22 02:17:44

http://reply.papertrans.cn/48/4721/472079/472079_3.png

悲观 发表于 2025-3-22 06:40:50

http://reply.papertrans.cn/48/4721/472079/472079_4.png

Aggressive 发表于 2025-3-22 08:49:40

http://reply.papertrans.cn/48/4721/472079/472079_5.png

antedate 发表于 2025-3-22 15:09:42

François Vellas,Lionel Bécherel, while existing works in this area concentrate on the fate of toxic substances in the environments and their effects on humans. This book is unique in that it indicates various environmental issues that the theoretical ecology is potentially applicable without concentrating into any particular subj

Rustproof 发表于 2025-3-22 20:09:29

François Vellas,Lionel Bécherelritical and target levels and catching more females than males if the population size is larger than the target level. The simulation results suggest that management based on sex-specific hunting is effective to diminish the annual variation in hunting yield. We also estimated the population size in

预示 发表于 2025-3-22 22:40:57

François Vellas,Lionel Bécherelr of deaths by the infection and economic loss are calculated as a function of the degree of intervention. The economic loss is considered to be a concave increasing function of the degree of intervention. We assumed that the situation will be resolved medically within 2 years. When the basic reprod

sleep-spindles 发表于 2025-3-23 01:37:02

http://reply.papertrans.cn/48/4721/472079/472079_9.png

Malleable 发表于 2025-3-23 09:04:13

http://reply.papertrans.cn/48/4721/472079/472079_10.png
页: [1] 2 3 4 5
查看完整版本: Titlebook: International Tourism; An Economic Perspect François Vellas,Lionel Bécherel Textbook 1995Latest edition François Vellas and Lionel Bécherel