You may also like:How Halloween has changed in the past 100 years 1943: Steel pennies Steve Lovegrove // Shutterstock 1943: Steel pennies Copper was critical to the American war effort during World War II. In o
【2】When you learn, neurons will ___.A.collect messagesB.make new connectionsC.make old connections weakerD.break down【3】The underlined word “fixed” in the passage means ___ in Chinese.A.变化的B.固定的C.聪明的D.修复的【4】The writer gives the example of babies in Paragraph 4 to...
You may also like: How Halloween has changed in the past 100 years 1943: Steel pennies Steve Lovegrove // Shutterstock 1943: Steel pennies Copper was critical to the American war effort during World War II. In order to ensure as much copper as possible could be used for equipment wiring, ...