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【单选题】
在主机遥控系统中,常会出现调速回路在静态时主机油门开度会在一个较小的范围内波动的现象,其原因是( ),解决办法是( )。A.
调速系统反应太迟钝/可增添微分调节规律
B.
调速系统反应太灵敏/可增添一较小的死区
C.
主机往复运动产生转速波动/可调大积分作用
D.
主机往复运动产生转速波动/可调小积分作用
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反馈参考答案：
举一反三
【单选题】听力原文：W: Mike! Look at the floor! M: What's wrong with it? W: What's wrong with it! It's filthy! M: Oh W: It's filthy because you never wipe your shoes. M: Sorry, love. W: what are you looking for now?...
A.
The floor is dirty with dust from shoes.
B.
The floor is covered with cigarette ash.
C.
The floor is covered with books,
D.
The floor is a mess with clothes.
【单选题】听力原文：W: Hello? M: Hello, Linda? W: Hello, Abruzzi. M: Look, what are you doing on Tuesday night? There is a great show at the Grand Theater. W: Tuesday night? Oh, sorry, I'm planning to finish my term...
A.
She will stay home.
B.
She will go the concert with Abruzzi.
C.
She will invite Abruzzi to a concert.
D.
She has not decided yet.
【单选题】听力原文：W: Is it snowing out? M: Is it snowing out? Look at my clothes, they're soaked. Q: What does the man mean? (19)
A.
He's looking for his raincoat.
B.
He's soaking his clothes.
C.
He wants to close the window.
D.
He got caught in the snow.
【单选题】—Please _______ at the picture. What can you _______ in it? —A guitar and a hat.
A.
see; look
B.
look; watch
C.
look; see
D.
watch; see
【简答题】将(讲话或文章)压缩
【简答题】在Windows中,可以利用“计算机”或“_____”来管理文件和文件夹。
【单选题】What w ill the employer look for during the interview?
A.
Your good look.
B.
Your qualities.
C.
Your social relations.
D.
our qualifications.
【单选题】在Windows操作系统中,可以使用文件夹来对文件进行分门别类的管理。同样,在Flash中,也可以使用( )来管理图层。
A.
图层面板
B.
图层文件夹
C.
库面板
D.
时间轴面板
【简答题】多选题 1.无性繁殖有以下优势（ ）。
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