in part, why the virus has spread so rapidly over the past year,” said Neville Sanjana, assistant professor of biology at NYU, who added that the mutation has reached “near universal prevalence” among the coronavirus variants spreading across the globe. ...
Figure 10 shows autocorrelation function (ACF) and partial autocorrelation function (PACF) plots. ACF and PACF assume stationarity of the first differenced time series. ACF explains how the present value of a given time series is correlated with past values. The PACF is a partial autocorrelation ...
Viewed August 25, 2009, http://www.ret.gov.au/tourism/policy/national_long_term_tourism_strategy/Pages/Nati onalLongTermTourismStrategy.aspx.Department of Resources, Energy and Tourism. (2009). National Long-Term Tourism Strategy. Australian Government. Retrieved August 2, 2010, from http://www...
We also utilize probabilistic linguistic term sets (PLTSs) to process the result of sentiment orientation and establish the integrated determination of objective criteria weights (IDOCRIW)-combined compromise solution (COCOSO) model to calculate the aggregate weight of attributes and rank the final ...
long-term exposure to PM2.5 concentrations higher than 10 µg/m3results in increased mortality due to respiratory and circulatory diseases. In the case of this criterion, it was considered that the recreation practiced in these areas will be short-term and it does not pose a direct threat to...
正在翻译,请等待... [translate] a为了长远的旅游发展,一些私营企业和自愿组织会成立这样的组织构成区域性自助网络。 For the long-term traveling development, some private enterprises and the voluntary organization can establish such organization to constitute the regional self-service network. [translate] ...
由于在校大学生受经济条件限制,他们的出游多以短期到邻近地区为主。《中国旅游报》对北京高校的专项抽样调查显示,大学生选择出游天数多以2～4天为主,比例总和占74.7%[2]。因大学生生活经历少,对学校和家庭以外的事物新奇,他们旅游时多选择与日常生活反差较大的自然风景类的旅游目的地。
Trip.com Group, a leading global travel service provider, has announced its long-term goal to build green tourism, covering three key areas, including: working with partners to launch over 10,000 low-carbon travel products;...
and editorials of support in major papers helped change his mind to run again. In April 2003 parliamentary elections were held, and the General People's Congress (GPC) maintained an absolute majority. The constitution calls for an independent judiciary. The former northern and southern legal codes...
题目The Grand Canal(大运河),the 3,200-kilometer-long,2,500-year-old waterway from Beijing to Hangzhou,is a UNESCO World Heritage Site(联合国教科文世界遗产).It is the(1)___(long)man-made waterway in the world.It(2)___(make) up of three sections built during differe...