肥水池塘中,浮游植物现存量很高,水色很浓,可能会产生水华。
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微生物是水生生态系统中的主要分解者。
A. 对
B. 错
Correct the following code to calculate the sum of 0 to 9.改正下列代码求整数1-9的和。sum=0foriinrange(1,9):sum+=i
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