神经细胞的静息电位为-70mV,Na+平衡电位为+60mV,Na+电-化学驱动力则为
A. -130mV
B. -10mV
C. +10mV
D. +130mV
竣工验收时为鉴定工程质量,对隐蔽工程进行必要的挖掘和修复的费用应记人()。
A. 企业管理费中的职工教育经费
B. 工程建设其他费中的建设管理费
C. 工程建设其他费中的特殊设备安全监督检验费
D. 预备费
Dr. Sanders and Dr. Jacobs turned in their resignations to the general hospital and will open a private practice of -------.
A. them
B. theirs
C. themselves
D. their own
Customer complaints about late shipments and damaged packages are becoming more -------.
A. frequent
B. frequented
C. frequently
D. frequency