Global efforts to control malaria through effective vaccine, insecticides and the best drug combinations require urgent, united action by scientists, drug companies, governments and the WHO.
63. Which of the following is scientists? headache?
A. The number of mosquitoes in Africa is growing rapidly.
B. Some genetic variants of mosquitoes are still unknown.
C. The existing insecticides aren?t as effective as they used to be.
D. Millions of African people have resistance to medicines for malaria. 64. Malaria cases can be cut by ______. A. threatening drug companies B. spraying insecticides C. limiting blood donation D. transmitting data
65. What CANNOT be concluded from the passage? A. Children are more likely to be bit by mosquitoes.
B. Many previously unknown variants are found in the study. C. The mosquito migration contributes to the spread of variants. D. Anopheles mosquitoes have great genetic diversity. 66. Which is FALSE about the genetic study of mosquitoes?
A. It created the largest data on natural genetic variation for any insect species. B. It found the possible causes for the rapid evolution of insecticide resistance. C. It discovered where the genetic variants emerged and how they were spread.
D. It highlighted the public efforts and appealed to limit the use of insecticides.
Section C
Directions: Read the following passage. Fill in each blank with a proper sentence given in the box. Each sentence can be used only once. Note that there are two more sentences than you need. A. But despite its popularity, experts warn that biometrics might not be as secure as we?d imagined. B. Security experts don?t think it absolutely necessary to use biometric technology. C. But