骨灰干燥程度采用目测和手感检验，骨灰应无明显的（）迹象，骨灰无结板、成团现象。
A、结石
B、水分
C、受潮
D、发霉
参考答案：C
—May I come in? I’m sorry I’m late.
—Come in, please. But could you tell me ?
A．how do you come to school
B．what were you doing then
C．who you talked with
D．why you are late
心力衰竭的原因不包括（）
A.心脏负荷增加
B.感染
C.弥漫性心肌病变
D.心肌缺血、缺氧
E.严重的心律失常
