6.Feifei loves the idea of earning to be independent.

2.What does Feifei's sister do on Fridays?

4.What will Feifei most probably do when she has a baby?

Unit 5Focus on listening ADecide whether the following statements are true or false.​浏览器不支持音频​1) Finn was just back to work after a vacation.______ 2) Feifei needed a ball to play a game on the beach.______ 3) Recently Feifei has taken up a new sport. She likes playing beach volleyball best.______ 4) Feifei tried to make a pun on Finn’s words, yet she misunderstood him.______ 5) Both Finn and Feifei had a lot of fun in their spare time.______

3.Why doesn't Feifei's sister give up her job?

鼠疫、霍乱、黄热病的潜伏期分别为()天。 A: 6、6、5 B: 5、6、6 C: 6、5、6 D: 6、6、6

【单选题】根据数字规律填一填 6 7 6 6 7 6 6 7 6 6 ___ A. 6 B. 7 C. 8

以下哪种方式可在Excel中输入数值-6 _______。: -6/#/6/#/\6/#/“6

钢丝绳按其结构组成有6 19、6 24、()三种。 A: 6 B: 6 C: 6 D: 6

设FIR数字滤波器的系统函数为[img=281x24]180364e20de59b6.png[/img]求其单位脉冲响应h(n)= ；并判断该数字滤波器是否具有线性相位特性 。（） A: {1/6, 0.9/6, 2.2/6, 0.9/6, 1/6} ；非线性相位特性 B: {0, 0.9/6, 2.2/6, 0.9/6, 1/6} ；严格线性相位特性 C: {1/6, 1/6, 2.2/6, 0.9/6, 1/6} ；非线性相位特性 D: {1/6, 0.9/6, 2.2/6, 0.9/6, 1/6} ；严格线性相位特性