数轴上有一个点到表示﹣7和2的点的距离相等，则这个点所表示的数是（ ）．
﹣2.5
As a coach, you should know clearly about the direction _____ your team should develop. [ ]
A. to which
B. from which
C. in which
D. for which
接受药物治疗的糖尿病患者的低血糖诊断标准是（）
A.血糖<2.8mmol/L
B.血糖<3.0mmol/L
C.血糖<3.5mmol/L
D.血糖<3.9mmol/L
E.血糖<4.0mmol/L
