问题
单项选择题
选择孕镶金刚石钻头胎体硬度的主要依据是岩石的()。
A、完整性
B、可钻进
C、研磨性
答案
参考答案:C
选择孕镶金刚石钻头胎体硬度的主要依据是岩石的()。
A、完整性
B、可钻进
C、研磨性
参考答案:C
Liu Qiang’s Time Table
A. playing basketball B. swimming C. playing soccer 小题2:What will Liu Qiang do on Tuesday afternoon? A. Take the guitar lesson. B. Visit Uncle Chen. C. Go to Lu Gang’s birthday party. 小题3:Liu Qiang will be free___________. A. on Monday afternoon and Thursday evening B. on Friday afternoon and Thursday evening C. on Saturday and Sunday 小题4:What will be Liu Qiang not do on weekends? A. Make up the missed lessons B. Rent videos C. Baby-sit his brother 小题5:. Which of the following is TRUE? A. Liu Qiang goes to school every day. B. Liu Qiang has an English test on Wednesday. C. Liu Qiang likes playing the piano. |