题干

阅读材料,回答下列问题。

材料一我国农作物病虫害有1200余种,对农作物的危害巨大。

材料二随着国际贸易的不断扩大和全球经济一体化的迅速发展,外来生物入侵日益加剧,造成原有生物群落的衰退,破坏生物多样性,导致农、林、牧、渔业损失严重,威胁全球的生态安全、经济安全和人类生命安全。外来生物入侵已成为世界各国政府和公众广泛关注和高度重视的热点问题。目前有400多种外来物种“全面”入侵我国,我国已成为外来生物入侵最严重的国家之一,近十余年来,新入侵我国的外来生物至少有20余种,平均每年新增约两种。

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同类题3

根据短文内容及首字母提示,填写所缺单词,使短文意思完整。每空限填一词。

    If you pay a visit to Liu Hasheng's restaurant in Harbin, you will find 18 robots there. They are ready to serve you and make sure that your dining e____ is perfect. After the visit, you can tell others that the robots serving customers isn't a dream any more.

    It's wonderful to see h____ the 18 robots work in the restaurant. The wonder s____ when you walk in. You'll see a robot come up and say, "Earth person, hello! Welcome to the Robot Restaurant." When you have ordered your m____, the robots in the kitchen begin to do the cooking. After the food is p____ , a robot waiter will glide (滑行) out of the kitchen to serve you with the meal you've ordered. And as customers enjoy their d____ food, a robot sings lovely songs for them.

    You may ask, "Where did all these robots come from?" Liu said they were designed (设计) and m____ by the Harbin Haohai Robot Company. Liu said he invested (投资) 5 million yuan in the restaurant, with each robot costing 200,000 yuan to 300,000 yuan. And the w____ robot team is managed by the workers in the computer room.

    After a busy day, all the robots will go for a "meal", which is e____. After 5 hours, the robots can continue their work for a day. The restaurant now provides a menu with more than 30 dishes (菜肴), and the average (平均) cost for a dinner is a____ 40 to 50 yuan. Do you want to go and have a try in this restaurant?