题目内容

将两钢筋安放成水平对接形式,并置于铜模内,中间留有少量间隙,用焊条从接头根部引弧,连续向上焊接完成的电弧焊方法是钢筋窄间隙电弧焊。( )

A. 对
B. 错

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焊接整流器与直流弧焊机比较,具有噪音小、空载损耗、惯性和磁偏吹较小、制造和维护容易等特点。( )

A. 对
B. 错

Oh, the fire is getting nearer and nearer. It is ______ our children and old people.

A. dangerous on
B. dangerous to
C. dangerous for
D. dangerous with

I was anxiously expected your letter, and at last 55.______ it has reached to me. I am very glad to know that 56.______ everyone at home is enjoying good health as usually. 57.______ Things here are same now as they were before. The 58.______ final examination will take place in next week. So 59.______ I am now busy preparing for my lessons. 60.______ The summer vacation is to coming 61.______ near. I really want to see you all again. 62.______ I am looking forward to spend summer days with you.63.______ Give my love to Father, Mother and anyone at home. 64.______

The first Olympic Games were held in 776 BC. They began as a religious festival and were held every four years. They were held in a valley of Ancient Greece called Olympia. Athletes came to Olympia to train full time for ten months prior to the Olympics. They had to undergo an examination of a ten-member panel who assessed them on their character and physical ability. Women were not allowed to participate in these early Olympic games and could not attend tile games. At the first games in 776 BC, the only event held was a foot race and was the length of the stadium. Later, a chariot race was added and was one of the most exciting events of these Olympics. The race was nine miles long. The prize for the victors of these early Olympics was a simple olive tree branch. Today, the Olympics are one of the most exciting events televised. People from all over the world watch to see the athletes from their countries compete in over twenty-eight events. According to the text, the Olympic Games today probably has ______.

A. [A] 25 events
B. 20 events
C. 31 events
D. 28 events

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