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【多选题】
将G94循环切削过程按顺序分1，2，3，4四个步骤，其中（）步骤是按快进速度进给（FANUC系统）。A.
1
B.
2
C.
3
D.
4
E.
1，2，3，4都是
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举一反三
【单选题】which of the following statements is implied in Paragraph 1?
A.
Clifford was good at playing the saxophone.
B.
The author's friend was once a street musician.
C.
The 12-year-old girl played the trumpet very poorly.
D.
Clifford was a good music teacher.
【简答题】听下面一段材料，回答第1-4题。 1. What do we know about Clifford’s last picnic ? A. He was wet all over because of the rain . B. He had a good time with his friends . C. He stayed home in case it would rain . 2. Wh...
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