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【简答题】
Jenny was an English. She was a good girl 1 she was often late for school.One morning she was late again.Mr Black,her teacher,was angry with her when she came into the classroom. "I'll write to your father 2 you aren't here on time tomorrow," he told her.Jenny didn't want him 3 that because her parents 4 very strict with her.The next day she got up very early and went to school without breakfast.She hurried to school.Just before she 5 the school gate,she stopped.She found a small bag 6 on the ground.She 7 and she decided to give it to the headmaster.When she hurried into the classroom,Mr Black was already 8 his lessons. "Jenny White," he said as soon as he saw her,"I've told you not to come late,but you're late again." "I'm sorry,sir," Jenny said."I was late because I found a small..." "I won't listen to any excuse," Mr Black stopped her."Because you can't get here on time,I'll write to your father." Jenny could say no more.She sat down 9 .She couldn't keep 10 her tears. As soon as the bell rang,the door opened.Mr Smith,the headmaster came in.He was holding a small bag in his hand."Excuse me,Mr Black,"he said."Is this 11 ?""Why,yes.It is mine,but I didn't know I lost it." Mr Black was surprised. "Jenny White found it just before school started.She gave it to me and asked me to 12 _ 13 had lost it." Mr Smith said. Mr Black's face turned red.He looked 14 Jenny and said,"I'm sorry,Jenny.I take back 15 I said."
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【判断题】液力机械自动变速器使汽车起步更加平稳,能吸收和衰减振动与冲击,从而提高乘坐舒适性。
A.
正确
B.
错误
【单选题】关于尺寸界线的说法错误的是()。
A.
用粗实线绘制
B.
可由图形的轮廓线、轴线或对称中心线处引出
C.
也可以直接利用这些线作为尺寸界线
D.
尺寸界线一般应与尺寸线垂直。
【单选题】绘图标准规定,图形的中心线、对称线、轴线应用( )绘制。
A.
粗实线
B.
细实线
C.
点画线
D.
波浪线
【单选题】尺寸界线用____绘制,并应从图形的轮廓线、轴线或对称中心线处引出,也可利用它们做尺寸界线
A.
细实线
B.
粗实线
C.
虚线
D.
折线
【单选题】在绘制图样时,应根据表达的需要,采用相应的图线,其中轴线、对称中心线用 绘制。
A.
粗实线
B.
细实线
C.
虚线
D.
细点划线
【多选题】液力机械自动变速器的特点。
A.
汽车起步更加平稳,能吸收和衰减振动与冲击,从而提高了乘坐的舒适性。
B.
液力传动的工作介质是液体,能使传动系统承受的动载荷大为减轻,因而提高了有关部件和零件的使用寿命。
C.
明显地减少换挡操作,有利于提高汽车行驶的安全性。
D.
主要缺点是结构复杂,成本较高,低速区传动效率低。
【判断题】尺寸界线表示尺寸的度量范围,应当用粗实线绘制,由图形的轮廓线、轴线或对称中心线引出。( )
A.
正确
B.
错误
【简答题】有以下程序段,若运行时从键盘上输入:6,5,65,66,则输出结果( [填空(1)] )。 char a,b,c,d; scanf("%c,%c,%d,%d",&a,&b,&c,&d); printf("%c,%c,%c,%c\n",a,b,c,d);A. 6,5,A,B
【单选题】用于绘制轴线、对称中心线时应选择()。
A.
粗实线
B.
细线
C.
虚线
D.
点划线
【判断题】液力机械自动变速器使汽车起步更加平稳能吸收和衰减振动与冲击从而提高乘座的舒适性。( )
A.
正确
B.
错误
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