We now know that about ____ of all the kinds of seaweed are animals.A: one fourB: once fourC: once fourthD: one fourth
We now know that about ____ of all the kinds of seaweed are animals.
A: one four
B: once four
C: once fourth
D: one fourth
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联合国经合组织将知识分为四种类型,分别是:Know－what(事实知识),;Know－why(原理知识);Know－how(技能知识);Know－who(人际知识)。( ) 此题为判断题(对，错)。
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