一个持刀的抢劫犯将你关起来，他的目的是向你父母要钱，这期间你认为正确的做法是（  ）
①假意听从劫犯的安排，给父母打电话时，要机智地给父母暗示
②不听从劫犯的要求，因为父母的钱来得太不容易了
③要勇敢地和劫犯搏斗，决不做一个懦夫
④在不激怒劫犯的前提下，与其周旋，为父母和警方争取时间

如图，某数学活动小组为测量学校旗杆AB的高度，沿旗杆正前方2 $\sqrt{3}$ 米处的点C出发，沿斜面坡度i=1： $\sqrt{3}$ 的斜坡CD前进4米到达点D，在点D处安置测角仪，测得旗杆顶部A的仰角为37°，量得仪器的高DE为1.5米．已知A、B、C、D、E在同一平面内，AB⊥BC，AB∥DE．求旗杆AB的高度．（参考数据：sin37°≈ $\frac{3}{5}$ ，cos37°≈ $\frac{4}{5}$ ，tan37°≈ $\frac{3}{4}$ ．计算结果保留根号）

由命题“存在x∈R，使e^|x－1|－m≤0”是假命题，得m的取值范围是(－∞，a)，则实数a的取值是(　　)

根据短文理解，选择正确答案填空。 

    Jim is a junior high school student. He gets up 16:30 every morning. His home is near his school. He 2home after breakfast. He goes to school on foot. This is good for his 3. He has four lessons in the morning. He has lunch at home. After lunch he goes to school again. In the afternoon, Jim has lessons . He likes English and PE lessons. He has PE lessons on Tuesday and Friday. He is good at4football and basketball. He is also good at the high jump. His PE teacher likes5 very much. He often plays football with his classmates after school.