____________, we keep records on all the experiments so that we can have enough data.（2分）<br>AAs a whole<br>BAs a rule<br>COn the average<br>DBy all means

____________, we keep records on all the experiments so that we can have enough data.（2分）
AAs a whole
BAs a rule
COn the average
DBy all means

出自：西北农林科技大学大学英语Ⅲ

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