Compare or connect ideas from notes when the goal requires it.
Comparison answers must mention both items and the relationship between them.
核心知识
When the goal asks you to compare or show a relationship, the correct answer must reference both items and make the connection explicit. An answer that only discusses one side — no matter how accurate — doesn't fulfill the goal.
深入理解
Comparison goals are some of the most straightforward to handle, because the correct answer must do two things:
- Mention both items being compared
- State the relationship between them (difference, similarity, advantage, etc.)
If an answer only discusses one of the two items, it fails the goal — even if everything it says is factually correct.
Pay attention to what the goal asks you to compare. If it says "compare the durability of X and Y," an answer that compares their costs is using the wrong basis. The correct answer compares the right attribute for the right items.
分步讲解
- Identify both items in the comparison.
- Choose the correct attribute or relationship to compare.
- State that relationship directly in the answer.
常见误解
- Comparing the wrong attribute.
- Leaving out one of the two items.
- Using a true fact that does not answer the comparison the prompt asks for.
示例解析
A student is researching renewable energy and has taken these notes:
- Solar panels convert sunlight into electricity using photovoltaic cells.
- The average efficiency of commercial solar panels is between 15% and 22%.
- Wind turbines generate electricity by converting kinetic energy from wind into mechanical power.
- Modern onshore wind turbines have an average efficiency of 35% to 45%.
- Solar panels require minimal maintenance and have no moving parts.
- Wind turbines require regular mechanical maintenance due to their rotating components.
The student wants to compare the efficiency of solar panels and wind turbines. Which choice most effectively uses relevant information from the notes to accomplish this goal?
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