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【判断题】
熔化极MAG焊,碳钢中厚板仰位对接接头,选用实芯焊丝焊接时,因为焊接电流不宜太大、焊接电压较高,所以焊接飞溅大,电弧不稳。A.
正确
B.
错误
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【单选题】With pressure from life and work increasing day by day, there should be something for people to ______. [ ]
A.
make fun of
B.
have fun with
C.
play tricks on
D.
have for fun
【单选题】The humans are destroying nature day by day,__________of course,will cause severe punishment from it sooner or later.
A.
who
B.
when
C.
on which
D.
which
【单选题】We can infer from the passage that Jean-Marc Rapp
A.
gave full support to the Bologna process in 1999.
B.
gave credit to the European countries that joined Bologna in 1999.
C.
did not have much faith in the Bologna process at first.
D.
intended to make Bologna an inter-governmental treaty.
【单选题】The humans are destroying nature day by day,__________of course,will cause severe punishment from it sooner or later.
A.
who
B.
when
C.
on which
D.
Which
【简答题】亚马逊网上书店是一家以( )业务为主的电子商务企业。
【简答题】The weather ______ (vary) from day to day.
【单选题】A place is moved from day into night and from night into day over and over by ______ of the earth.
A.
the pushing
B.
the pulling
C.
the spinning
D.
the passing
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