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時間:2022-08-15 來源:本站 點擊:258次
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River Plate beat Talleres to extend Primera Division lead******

BUENOS AIRES, Oct. 21 (Xinhua) -- Robert Rojas and Braian Romero scored either side of halftime as 10-man River Plate extended their lead in Argentina's Primera Division standings with a 2-0 victory away to title rivals Talleres Cordoba on Thursday.

The visitors were reduced to 10 men after just seven minutes when midfielder Felipe Pena was shown a straight red card for a rash challenge on Juan Mendez.

But the hosts failed to capitalize on their numerical advantage as River went ahead through Rojas' close-range strike just before half-time.

Romero doubled the lead 20 minutes from time with a low finish after Julian Alvarez's pass on the counterattack.

River now have 39 points from 17 matches and are seven points clear of second-placed Talleres.

In other Primera Division fixtures on Thursday, Argentinos Juniors won 3-1 at home to Colon, Aldosivi drew 0-0 at Newell's Old Boys and Independiente were held to a 1-1 home draw by Sarmiento. Enditem

“加拿大一枝黄花”到底是朵什么花?为什么要防控?******

       

近期湖南长沙等地进行的防除“澳大利亚一枝黄花”工作中,让外界外来物种防治工作中变成大伙儿关心的网络热点。这类绿色植物与在我国当地的一枝黄花外型和名字尽管类似,但并不是同一外来物种。

从外观设计看来,“澳大利亚一枝黄花”色调品绿,十分美观大方。上世纪30时代,这类原产地自北美洲的豆科绿色植物做为观赏植物被引进我国,最开始在公园、动植物园栽种,自此慢慢蔓延到郊外;上世纪80时代之后,伴随着经济活动兴盛、交通出行发展趋势,逐渐加快散播,并在上海周边、苏北等地发生,以后慢慢扩散至大量地域。现阶段,在我国10多个省区都能看到它的踪迹。

这类绿色植物往往快速蔓延,与它极强的侵入性相关。最先,其能以种籽和地下茎二种方法繁育,具备较强的繁衍工作能力。均值一株每一年可造成2万颗以上的种籽,种籽细微,易借风速、小动物或是人类活动长距离散播。一株身心健康的这类绿色植物,只靠地下茎繁育,2年后就能拓展为200多枝的物种。次之,这类绿色植物具备较强的竞争能力,他们在与被入侵地的绿色植物增光添彩、争水、争养分、争室内空间时优点显著,并能释放出来化感成分,对周边绿色植物造成危害功效。不仅如此,因本身土壤含水量大、涨势快、生长周期长、欠缺克星牵制,他们一两年内就能快速扩大地界,让别的绿色植物或身亡或消散,产生本身单一的物种优点。除此之外,这类绿色植物还有着不错的绿色生态适应能力,耐旱灾、耐贫乏,融入的温度范围比较广泛,因而可以入侵各种各样环境要素,毁坏本地的生物的多样性、减少湿地生态系统等,务必要用科学合理的方式严苛监管。

防治这类绿色植物有很多方式。最先是要高度重视检验检疫,禁止将其引入和散播到新的地域。针对早已蔓延的地区,要采用人力机械设备防除和有机化学防除这二种整治方式。在零星产生的地区,可以人力拔掉;在范围比较大、联片产生的地区,可以使用机械设备切除。在幼株期,还能够追施灭草剂防除。如今多地进行的防除工作中,可以在短期内大幅度减少其物种数量。但若要推进防除成效,还需不断关心、不断资金投入,完善外界外来物种的预警信息、检验检疫、评定和防治体制。

伴随着城市发展,货运物流、工作人员来往更为便捷与经常,外界外来物种防治难度系数也在扩大。大家务必增加资金投入、多方面参加,针对有关部门来讲,要搞好单位融洽、广泛宣传、发布信息、技术研发、资询和科普宣传工作中,人民群众如发觉外来物种也应立即向相关部门体现。仅有齐心合力,科学研究防治,才可以抵制外界外来物种的伤害。(创作者为湖北农牧业研究院飞防施肥研究室副研究员, 小编吴君访谈梳理)。


来源于:人民日报。

编缉:王蜀周秦。

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Foreign holdings of Chinese government bonds continue to rise in September******

BEIJING, Oct. 17 (Xinhua) -- Overseas institutional investors increased their holdings of Chinese government bonds in September as the yield remained attractive, official data showed.

By the end of September, the country's central government bonds held by foreign investors reached nearly 2.28 trillion yuan (about 354.11 billion U.S. dollars), up by 77.12 billion yuan from the previous month, data released by the China Central Depository & Clearing Co., Ltd. (CCDC) showed.

Foreign investors' holdings of bonds issued by China's policy banks stood at nearly 1.07 trillion yuan during the period, while their holdings of local government bonds reached 11.1 billion yuan, the data showed.

The outstanding bonds held by overseas institutional investors reached over 3.49 trillion yuan as of the end of last month, of which 2.57 trillion yuan was under depository via the Global Connect program and 925 billion yuan via the Bond Connect Program, according to the CCDC.

Currently, overseas institutions may access China's inter-bank bond market through the Global Connect (direct holding) or the Bond Connect (multi-tiered custody). Enditem

US life expectancy saw huge drop in 2020 due to COVID******

AFP。

OptimuMedicine-registered nurse Allison Anderson (left) gives Chuck Struckness of Nevada a Pfizer-BioNTech booster shot at a pop-up COVID-19 vaccination clinic at Larry Flynt's Hustler Club on December 21 in Las Vegas.。

US life expectancy dropped by 1.8 years in 2020, final official figures showed on Wednesday, the steepest drop in more than 75 years driven in large part by the COVID-19 pandemic.。

Life expectancy at birth was 77.0 years for the total US population last year, down from 78.8 years in 2019, according to the Centers for Disease Control and Prevention.。

Among men it was 74.2 years, while for women the figure was 79.9 years.。

Overall, COVID-19 was the third-leading cause of death, accounting for 350,000 fatalities, just over a tenth of all registered deaths, said a CDC report, which finalized preliminary findings from July.。

Some other causes of death also increased, possibly linked to difficulties accessing health care brought about by the pandemic. For the first time, diabetes deaths topped 100,000, while accidental/unintentional injury deaths topped 200,000 – also a first.。

The latest data comes after the US Census Bureau released a statement that said the pandemic drove population growth to its lowest rate in history, due in part to deaths from the virus and a drop in immigration.。

For the 12 months ended July 1, the population of the United States grew by 392,665 or just 0.1 percent, "the lowest rate since the nation's founding," the agency said in a statement.。

"Population growth has been slowing for years because of lower birth rates and decreasing net international migration, all while mortality rates are rising due to the aging of the nation's population," said Kristie Wilder, a demographer in the Population Division at the Census Bureau.。

"Now, with the impact of the COVID-19 pandemic, this combination has resulted in a historically slow pace of growth."

Even with the decline in immigration over the latest 12-month period, the net international migration of 244,622 for the first time ever exceeded the "natural increase" of US births over deaths – 148,043 in 2020 – the agency said.。

Due to delays in crunching the numbers caused by the pandemic, the Census Bureau's latest population report used blended data incorporating estimates from the once-a-decade 2020 census with other sources, including birth, death and migration records.。

Between 2020 and 2021, 33 states saw population increases and 17 states and the District of Columbia lost population, 11 of which had losses of over 10,000 people, the agency said, calling it "a historically large" number of states losing residents.。

A separate analysis showed Texas had the biggest population increase at 1.1 percent, mostly due to domestic migration to the state and rising net birth rates.。

New York showed the biggest decline, falling 1.6 percent in the year, mostly due to domestic migration out of the state, the agency said.。

国防科技大学国际关系学院召开“2020世界军事安全论坛”

1.换季不必买太多裤子 几条牛仔裤就足够了

2.视频!青海化隆强降雨引发洪水:一汽修厂几十辆车被山洪冲走

3.聚焦健康成长 首届全国青少年健康科普论坛举行

4.持有期又有创新!10家基金管理人出手了

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