如图为A、B、C、D四种微粒的结构示意图,请根据图示回答下列问题:
在平面直角坐标系中,直线y=﹣x+2与反比例函数y=1x的图象有唯一公共点,若直线y=﹣x+b与反比例函数y=1x的图象有2个公共点,则b的取值范围是( )
6k-2k=____
—He ______ basketball with his friends.
Medicine shall not be kept where it is ____ (可接触的)to children.