首页
登录
职称英语
Across Africa, the tsetse fly threatens a staggering 55 millions people and thei
Across Africa, the tsetse fly threatens a staggering 55 millions people and thei
游客
2024-08-11
56
管理
问题
Across Africa, the tsetse fly threatens a staggering 55 millions people and their 【M1】______
livestock. The insect sucks blood and in doing so may pass on babies or the dead 【M2】______
parasite that causes trypanosomiasis, sometimes it known as sleeping sickness. 【M3】______
Infected animals suffer of poor growth, weight loss and low milk yield. They 【M4】______
may also become fertile and die. An estimated 5000,000 people are also affected 【M5】______
by the disease each year, and most of them die. Tsetse fly traps are a simple
but effect solution. They are built using blue cloth spread between three poles, 【M6】______
that looks like a cow to the hungry insect, while bottles containing a mixture 【M7】______
of cows’ urine and acetone are placed below. Attracted by the smell, the tsetse
fly settles on the cloth but is unable to get a bite and falls into the trap. One 【M8】______
tsetse fly trap cost only £20 to build but tests have shown that a single trap 【M9】______
will not work. For this reason it’s important that farmers build a number traps 【M10】______
across an area. [br] 【M9】
选项
答案
cost一costs
解析
(此句话的主语one tsetse fly是单数形式,根据主谓一致原则,谓语也应该用单数形式。将cost改成costs。)
转载请注明原文地址:https://tihaiku.com/zcyy/3715309.html
相关试题推荐
Thearmywasseeminglyvictorious,butsincemanypeoplelosttheirlives,itwa
Nowadayspeoplecelebrateallkindsofgraduations.Studentsgraduatefromeleme
Nowadayspeoplecelebrateallkindsofgraduations.Studentsgraduatefromeleme
Nowadayspeoplecelebrateallkindsofgraduations.Studentsgraduatefromeleme
Nowadayspeoplecelebrateallkindsofgraduations.Studentsgraduatefromeleme
Peopleoftenlaughwhentheyseepenguinswalking.Penguinslookveryfunnywadd
Peopleoftenlaughwhentheyseepenguinswalking.Penguinslookveryfunnywadd
Peopleoftenlaughwhentheyseepenguinswalking.Penguinslookveryfunnywadd
Peopleoftenlaughwhentheyseepenguinswalking.Penguinslookveryfunnywadd
Peopleoftenlaughwhentheyseepenguinswalking.Penguinslookveryfunnywadd
随机试题
Securityisrequiredonloansforseveralreasons.Oneofthemostcommonis
Nowtheleveebreachhasbeenfixed.Thepeoplehavebeenevacuated.ArmyCo
PASSAGETHREE[br]AccordingtoParagraph3,whatwasthesignificanceofthela
Whereisthewomangoingtogoonholidaythisyear?[br][originaltext]M:Are
Since,wearetold,80to90percentofallinstructioninthetypicaluniv
Ithasbeensaidthateveryonelivesbysellingsomething.Inthelightoft
《检验检测机构资质认定管理办法》规定从业人员必须()。A、客观、公正 B、科
输卵管不通不孕症患者常配合的疗法是()A.西药人工周期 B.中药人工周期
约翰为甲国驻我国的外交官,2019年7月约翰将其自用2年的一辆小轿车转
对于采用成本领先战略的企业,适宜的绩效管理策略是( )A.选择结果以导向的绩效
最新回复
(
0
)