首页
登录
职称英语
[originaltext]M: I’ve just found the most useful device at that new outdoor sto
[originaltext]M: I’ve just found the most useful device at that new outdoor sto
游客
2023-09-12
79
管理
问题
M: I’ve just found the most useful device at that new outdoor store, a water purifier.
W: A water purifier! You want to carry even more equipment with you on our hiking trips?
M: If it is lightweight and saves work--yes! And this one fits that description.
W: Really? I bet it takes up a lot of room.
M: Not at all. It’s a straw, much like the ones you use to drink a soda or a milkshake.
W: Really? That’s small.
M: It’s plastic and has a series of mineral and chemical filters that strain harmful microbes from water.
W: Yes, but how good a job can it do filtering the germs out of stagnant pond water, or water from lakes and streams?
M: It’s fantastic. It makes the water entirely germ-free.
W: But what about salt or chemical pollutants? Does it clean them out?
M: No, it doesn’t remove salt and chemicals. But these are really not major concerns when we’re out hiking and camping.
W: Hm... How long will a straw last?
M: For about 100 gallons. But don’t worry about measuring that large amount of water. There is a built- in safety feature. The mineral and chemical filters become clogged long before the limit is reached, and the straw then stops drawing water.
W: I think I’ll go and get one for my camping trip this weekend.
选项
A、Minerals.
B、Chemical pollutants.
C、Salt.
D、Germs.
答案
D
解析
事实细节题 这种净水器可以清除水中的细菌,但不会清除盐分和其他化学物质。
转载请注明原文地址:https://tihaiku.com/zcyy/3007823.html
相关试题推荐
[originaltext]LasttimeweoutlinedhowtheCivilWarfinallygotstarted.
[originaltext]M:Pleasecomein,MissEdwards,andclosethedoorbehindyou.W
[originaltext]W:OK.Thiswillbemytreat.M:Oh,no,youdon’t.W:Allright,
[originaltext]M:Cathy,I’msorry.They’vejustsaidtheycouldn’tsupplythet
[originaltext]M:Cathy,I’msorry.They’vejustsaidtheycouldn’tsupplythet
[originaltext]M:Cathy,I’msorry.They’vejustsaidtheycouldn’tsupplythet
[originaltext]M:Cathy,I’msorry.They’vejustsaidtheycouldn’tsupplythet
[originaltext]M:Cathy,I’msorry.They’vejustsaidtheycouldn’tsupplythet
[originaltext]Lighttravelsataspeedthatisaboutamilliontimesfaster
[originaltext]Lighttravelsataspeedthatisaboutamilliontimesfaster
随机试题
MoscowCondemnsArrestofAllegedRussianSpyinNYCVocabularyandExpressions
在我国,企业法人开户从事期货交易应提供()。A、由法定代表人签署的授权书B、法定代表人的印鉴C、法定代表人身份证D、《企业法人营业执照》原件A,
Totheschool,thepurposeofthecampaignistostopallformsof______cheatin
A. B. C. D.
健康保险经营管理的基础工作之一是精算工作,其中主要任务是()。A.费率制定
B类突起路标一般不含逆反射器,直接由工程塑料、陶瓷或金属材料基体和色表面组成。(
钢筋断后伸长率为试样拉伸断裂后的长度与原始标距之比。()
文物出境展览,一级文物超过国务院规定数量的,应当报()批准。A.旅游局 B.文
肠鸣腹痛,大便泄泻,泻必腹痛,泻后痛缓,舌苔薄白,脉两关不调,左弦而右缓者,应选
龟甲、鳖甲功效的共同点是 A.滋阴B.补血C.潜阳D.退虚热
最新回复
(
0
)