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【判断题】
控弯采用有心棒弯曲时管子出现纵向伤痕的原因分析和应采取的措施：夹紧模滑动，管子被夹持部分出现滑痕，应适当调大夹紧模的夹紧压力；压力模调整位置太靠里，适当向外调整；压力模开度小，适当加大开度；压力模凹槽边角太锐利，修整锐边。A.
正确
B.
错误
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举一反三
【单选题】对照世界的和我国的第一所幼儿教育机构,下列说法错误的是( )。
A.
都是近代大工业生产的产物
B.
前者以游戏为主要活动，并让幼儿通过“恩物”来学习
C.
后者完全抄袭日本，具有半封建半殖民地教育的特点
D.
前者的创办者是被世界誉为“幼儿园之父”的福禄培尔
【简答题】Remember that a topic sentence is a complete sentence and is neither too general nor too specific. Step 1 Read the sentences in each group, and decide which sentence is the best topic sentence. Write ...
【单选题】What is the main topic of this passage?
A.
The solution to the Nebraskan settlers' fuel problem.
B.
Life in Nebraska in the late nineteenth century.
C.
The importance of the American buffalo.
D.
The forestation in Nebraska in the late nineteenth century.
【单选题】在长度为10的线段上任取一点x作为圆心，再任取一点y，以 |y-x| 为半径画圆，则圆的面积超过25π的概率为（ ）。
A.
1/4
B.
1/2
C.
1/10
D.
1/5
【单选题】When writing a detail paragraphs of complex graphs, which one is wrong statement?
A.
You have to show the diversity of sentences
B.
You have to write main features of different types of graphs
C.
You need to have synonyms to replace the words or phrases on the graphs
D.
You don’t have to follow certain orders when you write detail paragraphs of task 1
【单选题】As nobody here knows what is wrong with the machine, we must send for an engineer to ______ the problem.
A.
handle
B.
raise
C.
face
D.
present
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