After therobot finishes its tasks, it can 8 the pigeon back in the shortest possibletime.Although t will cost more money to 9 pigeons, the research centresays that it can 10 time. And the tme t saves will make up for the cost.()1. A.inviteB. carryC.blowD. kick()2. A. traffic...
Homing pigeons(信鸽)are pigeons that are 44(specially) trained to fly homefrom somewhere else. In tests, researchers 45(found)that homing pigeons were 46(more)efficient(高效的than flying robots at returning to their home. So theresearch center is trying to use a flying robot, togetherwith a...
robots are used to deliver(递送) mails.Flying robots can(1)___mails to people\s houses without having to deal with heavy(2)___.But they will spend too much time in returning. A research center is trying to improve its flying robots with the(3)___of homing pigeons(信鸽). Homing...
根据第二段For a recentstudyintheProceedingsoftheRoyalSociety B,Biroandhercolleaguescompareddomestichomingpigeons'pathsthreeorfouryearsafterthebirdsestablishedroutesbacktotheirloftfrom a farm 8.6 kilometersaway.(在最近发表在《英国皇家学会学报B辑》上的一项研究中,比罗和她的同事们比较了国内信鸽从8.6公里外的...
To investigate the effect of T on primary sex ratio and elucidate underlying mechanisms, we elevated circulating T levels in female homing pigeons ( Columba livia). During the course of the experiment females produced three clutches鈥攂efore and during T implantation, and one year after implant ...
In tests, researchers ( ) that homing pigeons were 6 efficient (高效的) than flying robots at returning to their home. A. promised B. joked C. planned D. found 相关知识点: 试题来源: 解析 D 句意:在测试中,研究人员发现,信鸽返回家园的效率比飞行机器人更高。promised 承诺;joked 开玩笑;...
There's even evidence that the sense of smell plays a role, at least for homing pigeons.Some species, particularly waterfowl and cranes, fllow preferred pathways on their annual migrations. Thesepathways are often related to important stopover locaions that provide food supplies ritical to the ...
典例剖析Homing pigeons(信鸽)arepigeons that are especially trained to fly home from some-where else. In tests, researchers found that homingpigeons were_46 B efficient(高效的)than flying robotsat returning to their home. So the research center is tryingto use a flying robot, together with a...
And thetime it saves will make up for the cost.()1.A. inviteB. carryC.blow()2.A. trafficB. rainC.pollution()3.A.helpB.luckC.treat()4.A. poorlyB.carelesslyC. specially()5. A. promisedB. foundC. planned()6. A. lessB.moreC. much()7. A. homing pigeonB. big houseC. ...
根据下文中的“homingpigeons(信鸽)”可知,一家研究中心正在利用信鸽来帮助改进飞行机器人。with the help of意为“在……的帮助下”。故选A。44.C【解析】考查副词辨析。根据下文中的“trained tofly home from somewhere else”可知,信鸽是一种经过特殊训练的鸽子,它能从任何其他的地方飞回家。故选C。45.D【...