高中数学指数函数和对数函数练习题（带答案和解释）  一、选择题1．下列函数：①y＝3x2(xN＋)；②y＝5x(xN＋)；③y＝3x＋1(xN＋)；④y＝32x(xN＋)，其中正整数指数函数的个数为()A．0B．1C．2D．3【解析】　由正整数指数函数的定义知，只有②中的函数是正整数指数函数．【答案】　B2．函数f(x)＝(14)x，xN＋，则f(2)等于()A．2 B指数函数定义．8C...

课题Unit 5、My clothes共6课时传授目标1.Make the students describe the size of clothes and shoes.:It’s expensive/colourful.2.Ss can answer the question.How much is it?3. Learn the words and sentences in Part A,B...

传授为人处事的方法的英文Methods of Interacting with Others1. Active Listening: Paying full attention to others when they are speaking, and showing interest and empathy in their words and emotions.2. Respect and C...