单项选择题 A seaman has a small，gaping laceration of the arm that is not bleeding excessively. What can be done as an alternative to suturing to close the wound?（）

单项选择题 A rescuer can most easily determine whether or not an adult victim has a pulse by checking the pulse at the（）.

单项选择题 A marker pole，with a horseshoe buoy and a sea anchor attached，should be used to（）.