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【单选题】
YT类硬质合金刀具主要用于加工( )。A.
金刚石
B.
铸铁
C.
陶瓷
D.
钢料
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皮皮学刷刷变学霸
举一反三
【简答题】The basic insurance under the PICC Ocean Marine Cargo Clauses is classified into three conditions : ______, ______ and ______.
【简答题】There are three basic ways of _____ language towriting, and all known graphic systems use one or a combination of these. A. committing B. attaching C.comparing D. relating
【简答题】There are three aspects in basic-level categories; ______, ______and______.
【单选题】The three basic parts of any eductor are the nozzle, the suction chamber, and the ______.
A.
injector
B.
compressor
C.
diffuser
D.
siphon
【简答题】Three basic characteristics in the settlement by an L/C，there are（ ）．
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