It was my birthday yesterday. My friends bought some ____ for me.
—Which is _______, the Yangtze River or the Yellow River?
—The Yangtze River, of course.
函数fx在0,+∞)上是增函数,gx=-fx若glgx>g1,则x的取值范围是( )
小红同学观察到烤面包片难以生出霉菌,则提出:水分对霉菌的生活有影响吗?这属于科学探究步骤中的( )