A robotic Tibetan antelope (机器藏羚羊) is now walking around Hoh Xil Nature Reserve (可可西里自然保护区). With 5G networks and AI algorithms (算法), it is used to ____1____ the latest information about Tibetan antelope populations without bringing trouble to their life.

This is the first time that such a robotic antelope has been ____2____ in the heart of Hoh Xil, which sits more than 4,600 meters above sea level. Its ____3____ closely matches a real Tibetan antelope, with similar fur color and body shape. So it has mixed with the Tibetan antelopes ____4____. The information it sends back is clearer and more dependable than that from traditional ways.

For wildlife research and protection, the project is ____5____, especially in the most challenging environment on Earth. It’s a key step in exploring nature for human beings.

1.1.

A hide

B protect

C collect

D copy

解析：选C。C collect 收集 句意：收集藏羚羊种群信息。hide 隐藏；protect 保护；copy 复制，均不符合语境。

2.2.

A laid

B thrown

C fed

D forgotten

解析：选A。A laid（lay 的过去分词，放置） 本句为被动语态：机器羚羊被放置在可可西里腹地。throw 扔；feed 喂养；forget 忘记。

3.3.

A appearance

B movement

C ability

D personality

解析：选A。A appearance 外貌，外形。后文 “similar fur color and body shape（相似毛色、体型）” 描述的是外表。movement 动作；ability 能力；personality 性格。

4.4.

A comfortably

B successfully

C luckily

D bravely

解析：选B。B successfully 成功地 外形逼真，所以成功混入羊群。comfortably 舒适地；luckily 幸运地；bravely 勇敢地。

5.5.

A funny

B easy

C meaningful

D changeable

解析：选C。C meaningful 有意义的 这个保护项目意义重大。funny 有趣的；easy 简单的；changeable 可变的。