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【单选题】
属于数控车削加工工艺文件内容的是（）。A.
数控加工走道路线
B.
数控车削工序尺寸及公差的确定
C.
零件图形的数学处理
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举一反三
【简答题】听下面一段材料，回答1-3题。 1. How long does Nancy train every day? A. About one hour. B. About three hours. C. About five hours. 2.What will Nancy do this weekend? A. She will probably go to attend the man's bir...
【单选题】—_______ does your mother go to the supermarket? —She takes a bus. [ ]
A.
How
B.
How often
C.
How long
D.
How much
【单选题】—_____________________? —The trees must three times a week. [ ]
A.
How long it is
B.
How much is it
C.
How long is it
D.
How much does it weigh
【单选题】---- _____ does your school have the parents’ meeting ? ---- Twice a year.
A.
How often
B.
How long
C.
How many
D.
How much
【简答题】Passage3(3) In the Chinese culture,people eat thousand-year-old eggs and they are edible and delicious,but do you think people from other cultures would like to eat these?You are going to hear a lectu...
【单选题】Why does the professor say this:
A.
To introduce the topic of cardiac muscle
B.
To find out how much the students already know
C.
To tell the students what will be on the next test
D.
To point out a question that has no clear answer
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