3. According to the passage, Gorgas and Reed had previously looked for the cause of yellow fever by studying  _____.
(A)sanitary conditions
(B)mosquitoes
(C)related diseases
(D)victims of the disease

9. (A)research (B)search (C)searching (D)searched

10.(A)warning (B)warn (C)warned (D)warming 

1. According to the passage, Maass went to Cuba to _____.(A)do nursing work (B)do research on yellow fever (C)continue her education (D)teach people about sanitation

2. It can be inferred from the passage that the research was probably supported by the _____. (A)hospital (B)army (C)volunteers (D)researchers

4. It can be inferred from the passage that many of the volunteers _____. (A)were not men (B)did not die (C)were not bitten by the insect (D)did not participate in the experiment

5. It can be inferred from the passage that, as a nurse, Maass was ______ (A)ambitious (B)dedicated (C)inexperienced (D)overworked

6. The ending end of education is to direct and help to fulfill a man's potentials in life. This means that _____.(A)education can do no more than directing and helping a man to realize his potentials. (B)the aim of education is not to direct but to help a man realize his potentials. (C)education has nothing to do with one's potentials. (D)the ultimate purpose of education is to direct and help a man to realize his potentials.

7.A few books read thoroughly will be of more value to the reader than many skimmed through and forgotten. Which of the following expressions conveys a similar idea? (A)All that glitters is not gold. (B)Art is long; life is short. (C)Quality matters more than quantity. (D)A rolling stone gathers no moss.

8. An educated man is not so much a man of learning, as a man whose intelligence has been awakened, and whose powers of observation, reasoning and thought have been trained. We are told that _____.(A)an educated man is not a man of learning (B)an educated man is a man of learning only (C)a lot of learning is sufficient for an educated man (D)to be an educated man, one has to be a man having more than knowledge

9.Which of the following words can be used to replace the word contract in "contracting the disease"? (A)acquire (B)expose (C)make (D)trace