Immediately after a 1-year-old client returns from a cardiac catheterization, the nurse notes that the pulse distal to the catheter insertion site is weak. The nurse should take which of the following actions

A. Remove the pressure bandage from the insertion site.
B. Perform passive exercises on the affected extremity.
C. Notify the physician of the assessment.
D. Record the data on the nursing notes and continue to evaluat

划分南北半球的界线是（   ）

A．本初子午线

B．赤道

C．20°W

D．160°E