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【单选题】
编程空运行时,下列不出现极警信号的操作是( )。A.
）输入了不能用的字符
B.
）输入了不能用的G代码
C.
）G92指令中没有指定F值
D.
）圆弧半径R被指定
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【简答题】阅读短文，选择正确答案。 Are you carrying too much on your back to school? I'm sure lots of your age will say 'Yes'. Not only the students in China have this problem, but children in the United States also have h...
【简答题】学测4 书面表达 ( 共 5 题;每小题 1 分,满分 5 分 ) David Watt ,一家网上书店的服务经理,他在回复客户李扬写来的一封投诉信。请按照调解信的要求,将下面方框中给出的五句话填入文中空白处,使该信内容完整。 We assure you that this will not happen again We look forward to serving you again Tha...
【单选题】听力原文：W: Professor Williams helped me so much that I'm thinking of buying him a book of poetry. M: I think you should get him a record, just because he's an English teacher doesn't mean all he does is ...
A.
Not everyone from England likes to read all the time.
B.
People who teach English like things besides books.
C.
The English like to read a lot and listen to music.
D.
English teachers usually like to read a lot.
【单选题】I have been staying at home for so long because of the epidemic disease,I'm looking forward to __________ back to school.
A.
go
B.
be gone
C.
going
D.
went
【单选题】听力原文：W: Professor Harrison helps me so much that I'm thinking of buying him a book of poetry. M: I think you should get him a record, just because he's an English teacher and it doesn't mean all he do...
A.
People who teach English like things besides books.
B.
English teachers usually like to read a lot.
C.
The English teachers like to read and to listen to music.
D.
Not every one from England likes to read all the time
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