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【单选题】
As a teenager, Mary sent newspapers in the morning, worked in a restaurant in the afternoon, and ______ in the evening.A.
typing for her mother
B.
had typed for her mother
C.
typed for her mother
D.
to type for her mother
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【单选题】--- He doesn't speak English or Japanese, _______? --- ________. He speaks Chinese.
A.
does he; Yes, he doesn't
B.
doesn't he; No, he does
C.
does he; No, he doesn't
D.
does he; Yes, he does
【单选题】He doesn't _____ Chinese. He _____ English. [ ]
A.
speak, says
B.
say, speak
C.
say, says
D.
speak, speaks
【简答题】空间中垂线和水平线会给人怎样的视觉感受？
【单选题】假设在数控铣床上用直径为6的铣刀精铣图中的内轮廓。内轮廓深度是8豪米并且在尖角处都存在弦长为0.4毫米的直线倒角。铣削时采用刀具半径左补偿。如果遇到这种情况时（）
A.
程序无法进行，数控系统会显示报警信息
B.
应该按工件的内轮廓线编程，同时加工刀具半径左补偿，就可以完成绝大部分内轮廓的加工
C.
应该把直径为6的铣刀换成直径为0.8的铣刀，然后按工件的内轮廓线编程，同时加工刀具半径左补偿，就可以完成绝大部分内轮廓的加工
D.
应该把所有的内尖角处理成略大于R3的圆弧过渡，然后按工艺生成的内轮廓线编程，同时加工刀具半径左补偿，就可以完成绝大部分内轮廓的加工
【简答题】A．He has to go to another meeting first. B．He doesn't want to speak at the meeting. C．He might get lost in the crowd. D．He doesn't like to go to public places.
【简答题】简述评价标准的制定程序。
【单选题】假设在数控铣床上用Ф6铣刀精铣图中的内轮廓。内轮廓深度是8mm并且在尖角处都存在弦长为0.4mm的直线倒角。铣削时采用刀具半径左补偿。如果遇到这种情况时( )。
A.
程序无法运行，数控系统会提示报警信息
B.
应该按工件的内轮廓线编程，同时加刀具半径左补偿，就可以完成大部分内轮廓的加工
C.
应该把Ф6铣刀换成小于Ф0.8的铣刀，然后按工件的内轮廓线编程，同时加刀具半径左补偿，就可以完成绝大部分内轮廓的加工
D.
应该把所有的内尖角处理成略大于R3的圆弧过渡，然后按工艺生成的内轮廓线编程，同时加刀具半径左补偿，即可完成绝大部分内轮廓的加工
【单选题】'Does he speak English or Japanese?''He doesn't speak ______ '.
A.
either
B.
neither
C.
none
D.
all
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