I can't understand it, will you please _____ once more?

A. explain that word  B. repeat that word   C. explain us that word  D. explain that word for us

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科目：高中生物 來(lái)源：2012-2013學(xué)年湖南省高三第五次月考生物試卷（解析版） 題型：選擇題

下圖細(xì)胞I、Ⅱ和物質(zhì)E、F的關(guān)系可能是

       細(xì)胞I            細(xì)胞II           物質(zhì)E           物質(zhì)F

A     下丘腦細(xì)胞       垂體細(xì)胞         促甲狀腺激素     受體

B     效應(yīng)T細(xì)胞       病原體           抗體             抗原

C     甲狀腺細(xì)胞       垂體細(xì)胞         甲狀腺激素       受體

D     傳出神經(jīng)元       傳人神經(jīng)元       神經(jīng)遞質(zhì)         受體

 

 

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Forgive him, please. I don't think he broke your mirror____.

A. with care  B. on purpose  C. for fun  D. with aim

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____for the doctor's careful treatment, he____till last year.

A. If it is not; can't live    B. Were it not; couldn't live

C. Had it not been; couldn't have lived    D. If they were not ; couldn't live

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_____ at the news that I didn't know what to say to comfort her.

A. So sad she looked  B. So sad did she look  C. So sadly she looked  D. So sadly did she look

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