静力触探试验是将一金属圆锥形探头，用静力以一定的贯入速度贯入土中，根据测得的探头贯入阻力间接地确定土的物理力学性能
参考答案：对
小题1:How old is your sister? A. Thank you!
小题2:Hello, this is Mary speaking. Is that Tom? B. Sorry to hear that.
小题3:My mother is ill. C. Fifteen.
小题4:Your hat is very nice. D. No, not so nice.
小题5:What's the time? E. It's 6 o'clock.
F. Speaking. This is Tom.
已知关于x的一次函数y=mx+2m-7在-1≤x≤5上的函数值总是正的，则m的取值范围是______．
