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【判断题】
用型砂紧实成型的铸造方法称为砂型铸造。砂型铸造是应用最广泛的一种铸造方法,其主要工序包括:制造模样,制备造型材料、造型、造芯、合型、熔炼、浇注、落砂、清理与检验等。
A.
正确
B.
错误
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举一反三
【单选题】Which of the following is true of Earl Millers research?
A.
It discovers neuroplasticity.
B.
It is the first study of this kind.
C.
It studies one environmental feedback.
D.
It attests to one cause of neuroplasticity.
【判断题】加强筋的筋与筋之间的间隔距离应小于塑件壁厚
A.
正确
B.
错误
【单选题】The teacher ______ the papers and the test began. [     ]
A.
gave in
B.
gave away
C.
gave out
D.
gave up
【单选题】我们估算49×6时,把49看成 [     ]
A.
40
B.
45
C.
50
【单选题】The two boys fought and fought until one_____________.
A.
gave up         
B.
gave in            
C.
gave away       D gave off
【简答题】49□800≈49万,□里可以填______. 39□8000000≈40亿,□里可以填______.
【简答题】The Millers gave a big party on Ling's ________(最后一次) evening in San Francisco.
【简答题】直接写得数。 49-40= 5×4= 32-12= 5×6= 30+9= 4×6= 6×3= 35+4=
【简答题】源程序转化成机器语言的两种方式是:_____和编译。
【单选题】What is true about Earl Millers research?
A.
It discovers neuroplasticity.
B.
It is the first study of this kind.
C.
It studies one environmental feedback.
D.
It attests to one cause of neuroplasticity.
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