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【多选题】
灰铸铁的焊接方法主要有()。A.
焊条电弧焊
B.
气焊
C.
钎焊
D.
埋弧焊
E.
手工电渣焊
F.
细丝CO2气体保护焊
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举一反三
【单选题】Our school is ______ than theirs. [ ]
A.
much beautiful
B.
much more beautiful
C.
more much beautiful
D.
a little beautiful
【单选题】______, we found that you were not hurt in the traffic accident.
A.
To our much relief
B.
Much to our relief
C.
To relieve us much
D.
Much relieved us
【单选题】The number of the students in our school _____ than that in theirs.
A.
is much more
B.
are much more
C.
is much larger
D.
are much larger
【单选题】某企业两个车间生产同一种产品,今年上半年同去年上半年相比较,由于两个分厂单位产品成本变化而使企业的总平均成本下降6%,由于产品结构变化而使企业总平均成本提高10%。则该企业总平均成本增减变动的百分比为( )。
A.
3.4%
B.
103.4%
C.
3.8%
D.
-3.4%
【单选题】某企业两个车间生产同一种产品，今年上半年与去年上半年相比较，由于两个分厂的单位成本的变化使得总平均成本下降6%，由于产品结构的变化使得总平均成本提高10%，则该企业总平均成本增减变动的百分百为
A.
3.4%
B.
103.4%
C.
3.8%
D.
-3.4%
【单选题】On Sunday I always prefer ___ rather than ___ TV all day.
A.
to read; watch
B.
read; to watch
C.
reading; watch
D.
reading; to watch
【单选题】The Discounted Cash Flow (DCF) techniques include ( )
A.
Net Present Value
B.
Payback period
C.
Internal Rate of Return
D.
A nnual cash flow
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