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| Section | Weight | Objectives |
|---|---|---|
| Mathematics | 28% | - Data & Information
|
| Science | 38% | - Biology
|
| Verbal Ability | 34% | - Word Knowledge
|
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質問 # 64
According to the Centers for Disease Control and Prevention (CDC), approximately 7% of children and adolescents ages 6 to 19 in the United States have a high total cholesterol. If 120,000 children and adolescents in that age range were sampled, approximately how many of them would have a normal total cholesterol?
正解：D
解説：
This is a percentage complement problem. If 7% of children have high cholesterol, then the remaining percentage with normal cholesterol is 100% # 7% = 93%. Convert 93% to a decimal by moving the decimal point two places to the left: 0.93. Multiply this decimal by the total number of children sampled: 0.93 ×
120,000 = 111,600. Therefore, approximately 111,600 children would have normal cholesterol levels, making option D correct. Option A incorrectly calculates 7% instead of the complement. Option C represents 70%, not 93%. Option B is close but incorrect due to rounding. NEX math questions often assess whether students understand that "normal" refers to the remainder after subtracting the affected group.
質問 # 65
Word Knowledge
The word"assist"most nearly means:
正解：A
解説：
"Assist" means to help or support. Option B is the correct synonym. The remaining options describe actions that oppose assistance. NEX verbal questions frequently use healthcare-related vocabulary like assist, administer, and support.
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質問 # 66
Which of the following routes of transmission is most responsible for the spread of hepatitis C from one individual to another?
正解：C
解説：
Hepatitis C is a bloodborne virus that is most commonly transmitted through direct blood-to-blood contact.
Sharing needles allows contaminated blood to enter another person's bloodstream, making it the primary mode of transmission. Hepatitis C is not spread through casual contact such as touching skin, coughing, or sharing drinks. Understanding transmission routes is essential for infection prevention and public health, and the NEX Science exam frequently emphasizes distinguishing between airborne, contact, and bloodborne diseases. Because hepatitis C spreads primarily through shared needles, option D is correct.
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質問 # 67
Word Knowledge
The word"fatigue"most nearly means:
正解：A
解説：
Fatigue refers to extreme tiredness or exhaustion. Option C correctly matches this meaning. NEX exams often include common clinical terms like fatigue.
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質問 # 68
Reading Comprehension
Passage:
Stress can affect both physical and mental health. Short-term stress may improve alertness, but chronic stress can weaken the immune system, increase blood pressure, and contribute to anxiety and depression.
Which effect of long-term stress is mentioned in the passage?
正解：C
解説：
The passage distinguishes between short-term and chronic stress. While short-term stress may increase alertness, chronic stress is associated with negative health effects. One of the effects specifically mentioned is increased blood pressure. Option C is therefore correct. Options A and D describe benefits not associated with chronic stress in the passage. Option B is incorrect because the passage states that chronic stress weakens, rather than strengthens, the immune system. The NEX exam often includes questions that test the ability to identify contrasting ideas within a passage, such as short-term versus long-term effects.
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質問 # 69
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