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- 1291117
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- 2017-7-16
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- 1970-1-1
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structure: P1, TKS, a special variety of dandelions, rubber; P2, producing rubbers, synthetic rubbers and natural rubbers; problem; P3, solution, one is to use guayule; growing slow; where TKS could come in; P4, why TKS could produce rubber: genes, an enzyme; P5, two approaches
content:
attitudes: objective
words: recherche, fruition, molecule, sap, outstrip, hectare, allergenic, coagulate |
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