图甲是用一主尺最小分度为1mm，游标上有20个分度的游标卡尺测量一工件的长度，结果如图所示，可以读出此工件的长度为___________mm；图乙是用螺旋测微器测量某一圆筒内径时的示数，此读数应 mm。
102.35mm 6.790mm
题目分析：据题意，此工件的长度据游标卡尺可以读得，该游标卡尺是20分度的，主尺读数为：102mm，游标尺读数为：7×0.05mm=0.35mm，故总的读数为102.35mm；圆筒直径为：固定部分刻度+旋转部分刻度=6.5mm+29.0×0.01mm=6.790mm。
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| I am Amy Yip, a nurse. On 5th October, I was on Flight J16 to London. The plane, a 747 jet, 1 Hong Kong at 4:30 p.m. After about an hour, I noticed a man who 2 blond hair walking to the front of the plane. The woman who was sitting beside me said the man 3 her feel nervous. Suddenly the man turned around and 4 up a small, black box. He told us that it was bomb. He ordered everyone not to move because he was hijacking (劫机) the plane. The pilot of the plane, Captain Scott, started 5 to the man. He told the hijacker he would do everything he said. The 6 ordered Captain Scott to fly to Leone, which is a city in Italy. Captain Scott, who was very calm, agreed. A few minutes later, a man whose seat was near the hijacker jumped up and 7 him. Five passengers tied up the hijacker while Co-pilot Ed Lau picked up the bomb, which was only a toy. Everyone clapped and thanked the man who 8 the hijacker. Then the plane was 9 back to Hong Kong so that the 10 could be handed over to the police. | ||||
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