(2). (单选题) What does “be discontent with our current comfort zone” (Para.3) mean? ( )(本题3.0分)
A、 Be prepared to realize our dreams.
B、 Keep dreaming of unrealistic goals.
C、 Picture our dreams clearly and vividly.
D、 Be dissatisfied with our present life.
出自:东北林业大学-大学英语3