注意：此页面搜索的是所有试题
题目内容
（长安大学大学英语3）
_________, 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
AAs a whole
BAs a rule
COn the average
DBy all means
参考答案