All of the following Were suggested as being used by sleep researchers EXCEPT ______.

A．unmeasurable
B．a brief burst of activity in the brain
C．unpleasant for some people
D．comtrollable

A．the fifty-five men who framed the Constitution
B．the wisdom that speaks to us in our Constitution that made American what it is
C．the year 1787
D．Madison, Mason, Sherman, Wilson, Morris, and Hamilton-men who had considerable influence in the drafting of the Constitution