问题
单项选择题
当点火控制器末级大功率三极管导通时，测得点火线圈初级绕组负极端的电压为（）
A.0V
B.1V
C.5V
D.12V
答案
参考答案：A
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当点火控制器末级大功率三极管导通时，测得点火线圈初级绕组负极端的电压为（）
A.0V
B.1V
C.5V
D.12V
参考答案：A
Some people do not like anything to be out of place, they are never late for work, they can remember people’s birthdays; and they are always 31 to their friends and family members. Mr. Brown is such a person. Mr. Brown works in a 32 , and he lives in the town alone . He only has a sister. She lives in 33 town with her husband and her son, Mike. Mr. Brown doesn’t have time to see his sister or her family, from one year to the 34 , but he never forgets 35 them different kinds of greeting cards. These days, he is busy 36 a birthday card and presents for the 20th birthday of his nephew, Mike. Last Sunday, Mr. Brown had quite a surprise. He drove home from the hotel at the usual time, and he drove his car very 37 , not too slowly or too fast. When he got home, he parked his car as usual in the right place, and then he went into the house to make supper. Suddenly, there was a 38 the door. Mr. Brown opened the door and found a policeman standing outside the door. “What’s wrong?” he asked 39 . ‘Did I drive on the wrong side of the street? Or did I make a mistake at work?’ “Hello, Uncle,” said the policeman with a big 40 on his face, “My name is Mike”.
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