单项选择题 如对大额逾期应收账款无法获取询证回函，审计师应（）。

单项选择题 元明粉属于（）。

单项选择题 听力原文：M: Hello. Will you please send someone up to my apartment? The hot water is running. And I can't turn it off.W: There's no one in the office right now. I'll send someone up as soon as I can.Why did the man want someone to come up to his apartment?A．There was no hot water.B．The light couldn't be turned off.C．There was no heat.D．The hot water was running.