Questions with grade, subject, answer lists, best answers and image information, selectable by educational stage and subject.
Negotiated pricing · Preview first, then confirm version and scope
Start with the data unit, selection criteria and available samples to assess project fit.
Grade, subject, question and nested answers support stratified evaluation. Ten physics/computing excerpts are public; the original schema has 34 fields. Original answer_type labels distinguish user/AI answers. User details and resource addresses are omitted.
Select by subject, grade and publication time; Filter image and best-answer presence; Two Parquet samples verified
10 preview records · 1 image excerpts · dictionary and README. Confirm the full delivery version before ordering.
Use limited excerpts to inspect content and structure. The README identifies provenance, field projections and preview limits.
| question_id | question_content | subject | grade |
|---|---|---|---|
| 284 | Create a graphic organizer to display the physical properties of minerals. | Physics | Middle School |
| 566 | What type of rock is the Haystack Rock? A. Igneous B. Metamorphic C. Sedimentary | Physics | Middle School |
| 487 | Can water and pebbles form a solution? | Physics | High School |
10 preview records · 1 image excerpts · dictionary and README
ZIP · 98.9 KB · Includes Chinese and English README
Verified and requested fields are identified in the kit; exact structure depends on the confirmed delivery version.
| Field / content | Type | Description |
|---|---|---|
| url | string | 原始内容链接。 |
| question_id | string | 题目公开 ID，Parquet 中为字符串。 |
| answers_count | int64 | 题目登记的回答数量。 |
| collected_at | string | 样例登记的收集时间。 |
| fallback_database_id | int64 | 备用记录关联 ID。 |
| id_aligned | bool | 记录 ID 对齐状态。 |
| page_props_answers_count | int64 | 页面属性中登记的回答数量。 |
| answers_count_actual | int64 | 解析后实际保留的回答数量。 |
8 fields shown; all 35 references are in schema-reference.json. Refer to the README for native fields versus preview projections.
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Check question/answer pairing and create retrieval subsets by subject and question type.
Inspect formulas, options, images and answer structure for text completeness.
Distinguish final answers, explanations and steps when defining evaluation coverage.
Pricing is negotiated around your confirmed delivery scope.
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10 preview records · 1 image excerpts · dictionary and README. The public kit is for preview evaluation. Full data requires a confirmed version and delivery list.
Catalog scale comes from registered sources or official specifications. Public kits contain limited excerpts or references. Verify actual deliverable scale for your selected scope.
Confirm the selected version’s license, provenance and permitted uses. Catalog listing and preview access do not grant training, commercial-use or redistribution rights to the full data.
Check the actual samples before selecting a batch. These are suggested acceptance criteria, not quality guarantees for the full corpus.
Ask for verifiable examples or counting rules for your selected version and use.
Ask for verifiable examples or counting rules for your selected version and use.
Ask for verifiable examples or counting rules for your selected version and use.
Start with samples and fields, then share your topic, format and intended use. Confirm available versions, delivery contents and negotiated pricing with sales.
Contact sales · Negotiated pricing