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【多选题】
下列哪些结构的类型可作为鉴定中药材的依据()A.
表皮
B.
气孔
C.
纤维
D.
石细胞
E.
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举一反三
【简答题】— If you can't say what you've come to say at the meeting, what's the point? —____________________,but I think you might need to change your approach somewhat. A: I am not sure B; I can see that C; I ...
【简答题】You shouldn't promise what is impossible.
【简答题】抄一抄。 1. c ________________________ 2. m ________________________ 3. n ________________________ 4. r ________________________ 5. s ________________________
【简答题】You are going to high school , aren’t you ? Maybe you don’t know what to do . Here is a list of the top six things to do when you are in high school . These things will give you ideas of what your hi...
【简答题】设有向量组(Ⅰ)：α 1 ，α 2 ，α 3 ；(Ⅱ)：α 1 ，α 2 ，α 3 ，α 4 ；(Ⅲ)：α 1 ，α 2 ，α 3 ，α 5 .如果各向量组的秩分别为r(Ⅰ)=r(Ⅱ)=3，r(Ⅲ)=4.证明：向量组(Ⅳ)：α 1 ，α 2 ，α 3 ，α 5 -α 4 的秩为4.
【简答题】What should you do if you don't like the food?
【单选题】_____ you are supposed to do _____ you don’t like a thing is changing it．Don’t complain．
A.
That; what
B.
When; that
C.
What; since
D.
What; when
【单选题】_____is widely known that you value more what you haven’t rather than what you have .
A.
As
B.
What
C.
It
D.
Which
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