问题
单项选择题
电线接头必须用绝缘胶布缠包至()层以上。
A.1
B.3
C.5
D.8
答案
参考答案:B
电线接头必须用绝缘胶布缠包至()层以上。
A.1
B.3
C.5
D.8
参考答案:B
补全对话(共5分 每小题1分)
Linda: No. 小题1: Laura: A man named Wang Dawei called the 110 hotline. 小题2: ,his car crashed into (撞上) another one. Linda: Who was trapped (被困) in the car, do you know? Laura: 小题3: They couldn't move out of the car. Linda: 小题4: Laura: Wang Dawei was all right, but his wife hurt her left leg. 小题5: Linda: Thank goodness! He should be careful next time. |