Mosquitoes can transmit
A.filariasis
B.dengue fever
C.malaria
D.encephalitis B
E.leishmaniasis
- · 有4位网友选择 C,占比40%
- · 有3位网友选择 E,占比30%
- · 有2位网友选择 A,占比20%
- · 有1位网友选择 B,占比10%
A.filariasis
B.dengue fever
C.malaria
D.encephalitis B
E.leishmaniasis
Mosquitoes have an interesting life cycle. The female mosquito bites a person or animal in order to get some blood. She needs this blood before she can lay her eggs. Second, she flies to an area of water and deposits (存放),40 her eggs in the water. In a few days the eggs open, and the baby mosquitoes, called larvae, come out. In a short time, they will be mature and fly away.
It is interesting to note that only the female will bite for blood. She has a special mouth which can go into an animal's skin or a person's skin. On the other hand, the male mosquito can only drink plant juices with his mouth.
The author suggests that all mosquitoes like ______.
A.blood
B.wet areas
C.cold weather
D.dry climates
Which of the following is NOT the measure taken to combat mosquitoes?
A.The state congress passed a bill fining those who do not tend houses.
B.Oil and synthetic growth hormones are used to keep the mosquitoes adolescent, preventing breeding.
C.Fish that can eat larvae are used.
D.Authorities help the owners with pest control on reasonable charges.
A、paraphrasing lation
B、Omission
C、Abbreviation Literal trans
A.Because scientists like mosquitoes.
B.Because mosquitoes adapt quickly and can change their body chemistry.
C.Because the medicine against mosquitoes is of bad quality.
D.Because there are too many mosquitoes.
Why does rain produce a lot of mosquitoes?
A.Mosquitoes can find enough food in rainy season.
B.Rain makes grass grow fast.
C.Rain provides a good living condition for mosquitoes.
D.Rain provides an abundant supply of water.
A.natural mosquito populations do not change
B.scientists have succeeded with birds and mice
C.foreign genes always go where they are required
D.lab-raised mosquitoes will not be resistant to drugs
According to the WHO, the organisms carried by mosquitoes __________.
A) are the food for larvae
B) have led to the death of millions of people in the world
C) invade red blood cells first and then destroy major organs
D) can enter a person’s brain through the mosquito’s bite
A.The canoes can't hold many people.
B.The visitors will easily lose their ways.
C.The mosquitoes will eat them alive.
D.The grass is so tall that it's hard for the canoes to pass.
Which of the following statements about West Nile virus is CORRECT?
A.It is mosquitoes that spread the virus.
B.Most people die in two weeks after contracting.
C.The highest number of cases occurred in 2004.
D.Staying away from crowds can provide good protection.
A barter economy can lead to______.
A.difficulties for the traders
B.confusions in the transactions
C.misunderstandings among people
D.quick development of transactions
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