What are bedbugs? Are they dangerous?Brendan Borrell
根据下文People used dangerous chemicals to kill them a long time ago.(很久以前,人们使用危险的化学物质来杀死它们。)可知此句提到了很久以前,人们杀死臭虫,故"臭虫已经存在了几千年"符合语境,故选A。(3)细节推理题。根据上文But in the past 20 or 30 years,bedbugs have started to make a comeback....
they’re more annoying than dangerous.According to the CDC, there’s a good chance that if you were a bed bug’s snack overnight you may not know that when you wake up. Bed bugs inject humans with anesthetic and an anticoagulant, so their bites are unlikely to wake you up ...
they’re more annoying than dangerous.According to the CDC, there’s a good chance that if you were a bed bug’s snack overnight you may not know that when you wake up. Bed bugs inject humans with anesthetic and an anticoagulant, so their bites are unlikely to wake you up ...
Notably, sticky traps are notoriously ineffective at catching bed bugs, and home remedies like kerosene, rubbing alcohol, and gasoline are dangerous as all three are highly flammable. Isolating Infested Rooms Until Treatment Before professional treatment, hotels will need to isolate any potentially infes...
The persistent bugs are also great hitchhikers, and they can move easily across a room and climb into luggage, explaining why many travellers struggle to escape an infestation. The good news is that the bugs aren't considered dangerous, and there's no evidence that they can spread diseases to...
not just the few dangerous ones.They squash them or run from them at first sight,not realizing that most spiders are actually beneficial to man.图的 图的 If you're concerned about bites,don't forget about rabid(患有狂犬病的) animal bites.Any warm-blooded animal can get infected with ...
Do bedbugs spread diseases? No, but it is a nuisance because the bite causes itching, which can lead to scratching and infection. Is the bite itself dangerous? The bite of the bedbug - which is, in fact, a biting and sucking of the skin - affects each person differently. The bite rea...
① rattlesnakes ② bedbugs ③ bears ④ spiders ⑤ rabid animals E. ①④ F. ②③ G. ③⑤ . ②④ 3. What can we know from the 3rd paragraph? . All spiders are dangerous and one bite from each of them can be very serious. . The black widow spider is actually beneficial to humans...
Parents think they are protecting their families and food sources from pests when buying street pesticides. With no label or verbal warnings, people apply them not knowing how dangerous they really are. Children are particularly vulnerable as their bodies are still developing. They are also small ...