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【单选题】

What is this lecture mainly about?

A.
A process for improving drainage systems
B.
A comparison of different types of drainage systems
C.
The relationship among the most common drainage systems
D.
The changes that occur in drainage systems over time
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参考答案:
参考解析:
.
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举一反三

【多选题】会计的基本职能是( )。

A.
会计决策
B.
会计核算
C.
会计监督
D.
会计预测