按NCCLSEP6进行线性评价时，标本的种类可以（）

A.混合病人血清

B.溶血患者标本

C.商品的质控物或校准物

D.病人待测物的混合血清

E.用特殊材料透析过的混合血清

根据句意和汉语注释，写出单词的正确形式。

1. His coming can bring many __________ (好处) to the villagers.

2. We all know that some birds fly to __________ (南方的) places in winter.

3. Jim __________ (借) me a book about animals three days ago.

4. Many plants only grow well in ___________ (自然).

5. Noise is unpleasant, ___________ (尤其) when you are trying to sleep.