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299.Do you know the famous scientist Yuan.Longping?
Of course. His name _____ whenever the matter of hybrid (杂交水稻）is discussed.
A.comes out
B.comes up
C.comes in
D.comes on
300.If you _____ your hand as far as you can, you should be able to touch it.
A.push out
B.reach out
C.hold out
D.pull out
