________ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.

AEven if BAs far as

CIf only DSo long as

 

A

【解析】A 考察,從。Even if即使,縱然;引導讓步狀語從句。句義:即使計算結(jié)果正確,科學家也無法肯定他們已經(jīng)把所有的變量都包括進去并進行了準確的模擬。根據(jù)句義說明A正確。

 

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