问题
单项选择题
锯削较硬材料或较小切面的工件时，适用的是（）锯条。
A、粗齿
B、细齿
C、中齿
D、长齿
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
锯削较硬材料或较小切面的工件时，适用的是（）锯条。
A、粗齿
B、细齿
C、中齿
D、长齿
参考答案：B
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| Dick had a toothache. His mother 1 him to the dentist. Before they saw the dentist, they 2 wait "Please come in!" said a nurse in a 3 dress. Dick looked afraid 4 he came into the dentist's room. "Now tell me. What's wrong 5 you?" the dentist asked. "I feel terrible. I think I've a 6 tooth", said the boy. "Well, let me have a 7 ", said the dentist kindly. Dick 8 his mouth 9 the dentist began to examine (检查) his 10 . | |||
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