风的种类基本的急救技能英语雪英语怎么读Basic first aid skills1、Bleeding（流血）If the person is bleeding,try to stop it quickly.Put a clean cloth on the wound.If you do not have a cloth,u someones clothes.Hold the cloth on
Type I and type II errors(α) the error of rejecting a "correct" null hypothesis, and(β) the error of not rejecting a "fal" null hypothesisIn 1930, they elaborated on the two sources of error, rema
鼓浪屿（英语介绍）鼓浪屿（英语介绍）contextualGulangyu, parated from Xiamen by the 500-metre-wide Egret River, with an area of 1.77 square kilometres, enjoys a lauditory title "Garden on the Sea." The original name o
