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【简答题】
Passage3 Once when I was a teenager, my father and I were standing in line to buy tickets for the circus. Finally, there was only one family between the ticket office and us. This family made a big impression on me. There were eight children, all probably under the age of 12. You could tell they didn’t have a lot of money. Their clothes were not expensive, but they were clean. The children talked excitedly about the clowns. It was clearly a very important day out for them. The father and mother seemed happy as they could be. The tickets lady asked how many tickets the father wanted, he proudly answered, “Please let me buy eight children’s tickets and two adults’ tickets, so I can take my family to the circus.” The ticket lady told him the price. The man’s wife lowered her head. There was no longer a smile on the man’s face. He quietly asked, “How much did you say?” The ticket lady again told him the price. The man obviously didn’t have enough money. But how could he tell his kids the bad news? Seeing what was happening, my dad took a $20 note from his pocket and dropped in on the ground. (We were not rich ourselves at all!) He then tapped the man on the shoulder and said, “Excuse me, sir, you dropped this.” The man understood my father was helping him. He picked up the money, looked straight into my dad’s eyes, and in tears replied. “Thank you. This really means a lot to me and my family.” Although we did not go to the circus that night, we didn’t go without.
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【判断题】直接点火系统没有点火线圈。
A.
正确
B.
错误
【单选题】直接点火系统没有 ( )
A.
点火线圈
B.
分电器
C.
曲轴位置传感器
D.
火花塞
【单选题】从下面选择关于直接点火系统中的点火线圈的正确描述。
A.
该点火线圈设置在每一火花塞盖中。
B.
该点火线圈安装在气缸盖上。
C.
该点火线圈安装在每个气缸组上。
D.
直接点火系统没有点火线圈。
【判断题】宽带信号是指用多组基带信息调制不同频率的载波。
A.
正确
B.
错误
【单选题】氧化反应有几种类型()
A.
一种
B.
二种
C.
三种
D.
四种
【单选题】在检修直接点火系统时,甲技师说,IGF针脚是点火反馈信号线,如果没有此信号,系统将不点火;乙技师则说,系统点火正常,但该缸喷油器不工作。请问谁的说法正确。( )
A.
点火提前角信号
B.
点火触发信号
C.
G信号
D.
NE信号
【单选题】5- 羟色胺(生理作用)不包括( )
A.
调节 GnRH (促性腺激素释放激素)分泌
B.
抑制 GTH (促性像素)的分泌
C.
刺激卵泡内膜细胞产生雄激素
D.
促进 PRL (泌乳素)的分泌
【判断题】宽带信号是指用多组基带信息调制不同频率的载波。()
A.
正确
B.
错误
【单选题】一个标有“6V 3W”的灯泡,欲接到9V的电源上能正常发光,应给它
A.
串联一个3Ω的电阻
B.
并联一个3Ω的电阻
C.
串联一个6Ω的电阻
D.
并联一个6Ω的电阻
【单选题】在检修直接点火系统时,甲技师说,IGF针脚是点火反馈信号线,如果没有此信号,系统将不点火;乙技师则说,系统点火正常,但该缸喷油器不工作。请问谁的说法正确。( )
A.
甲正确
B.
已正确
C.
都不正确
D.
都正确
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