土按照物理特性及工程特点分为什么？
参考答案：
砂土、重粘土、砂性土、粉性土、粘性土。砂性土、粘性土是路基用土的优良用土。
The nurse is caring for a client who is experiencing auditory hallucinations. What would be most critical for the nurse to assess
A. Possible hearing impairment.B. Family history of psychosis.C. Content of the hallucinations.D. Possible sella turcica tumors.
女性，40岁，7个月前因坐骨肛管旁间隙脓肿行切开引流，近半年来反复流出少量黏液脓性分泌物，局部皮肤发红、瘙痒。应考虑为
A．慢性肛周皮下脓肿
B．肛瘘
C．直肠癌
D．肛裂
E．混合痔
