Which of the following laboratory tests should be monitored closely by the nurse while the client is receiving heparin therapy

A. International normalized ratio (INR).
B. Activated partial thromboplastin time (APTT).
C. Prothrombin time (PT).
D. Thrombin tim

电磁堵漏工具主要用于各种罐体和管道表面点状、线状泄漏的堵漏作业，适用于工作压力小于3.0MPa的场合。