谨慎性原则要求企业不得多计费用和负债，不得少计收益和资产。 ( )
参考答案：错
解析： 谨慎性原则要求企业不得多计收益和资产，也不得少计费用和负债。
The two old sisters, so long, held each other and burst into tears. [ ]
A. being separated
B. having been separated
C. having separated
D. had been separated
电机启动时电压升高。（）
