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【单选题】
Read the paragraphs below. Then carefully consider the questions that follow, and, in the spaces provided, write the letters of the best responses. A successful doctor is scheduled to operate on a patient at 8 a.m., but it has snowed during the night, and driving is difficult. Do you think the doctor will stay home in bed?Not if he or she is professional. This attitude of professionalism is the key to being a successful college student, too. And it is within your reach, no matter how well or how poorly you have done in school up until now. You cannot undo the past, but you can adopt an attitude of professionalism from now on. A11 you have to do is intend to take school seriousiy, and the rest will follow. By attending classes, turning in assignments on time, and coming prepared for tests, you will gradually build your skills. 1. The primary purpose of this paragraph is to _________
A.
present facts on student behavior.
B.
inspire students to be conscientious.
C.
entertain students with a dramatic story about professionalism.
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参考答案:
举一反三
【简答题】写出下列音程的名称。A. 倍增一度
【简答题】数控电火花线切割加工与数控电火花成形加工的区别在于线切割加工是用连续移动的 作为工具电极来代替电火花成形加工中的成形电极,利用线电极与工件之间产生的脉冲火花放电来腐蚀工件。
【单选题】数控线切割的工具电极是( )的。
A.
丝状
B.
柱状
C.
片状
【单选题】一般人所说的雷击是由直接雷造成的,由于它瞬间放出的( )相当大,产生的高温高压引起爆炸、火灾和建筑物倒塌,造成人畜伤亡事故。
A.
雷电波
B.
雷磁场
C.
电流
D.
电压
【判断题】数控线切割的工具电极是金属丝。
A.
正确
B.
错误
【单选题】螺栓孔孔距超过相关规范的允许偏差时,可采用与母材相匹配的焊条补焊,并经无损检测合格后重新制孔,每组孔中经补焊重新钻孔的数量不得超过该组螺栓数量的( )
A.
10%
B.
20%
C.
25%
D.
30%
【简答题】写出下列音程的名称
【单选题】4E级机场在标准条件下,可用跑道长度为( )。
A.
≥1600m
B.
≥1700m
C.
≥1800m
D.
≥1900m
【简答题】位于法国的( )教堂被雨果称为“石头的史书”,是哥特式建筑的代表作品。
【单选题】根据《钢结构施工规范GB50755-2012》的规定,螺栓孔孔距超过相关规范的允许偏差时,可采用与母材相匹配的焊条补焊,并经无损检测合格后重新制孔,每组孔中经补焊重新钻孔的数量不得超过该组螺栓数量的()%。
A.
20
B.
25
C.
30
D.
35
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