---Do you know the famous scientist Yuan Longping?
---Of course. His name______whenever the matter of hybrid rice（杂交水稻）is discussed.
| A．comes out | B．comes up | C．comes in | D．comes on |
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---Do you know the famous scientist Yuan Longping?
---Of course. His name______whenever the matter of hybrid rice（杂交水稻）is discussed.
| A．comes out | B．comes up | C．comes in | D．comes on |
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