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【简答题】
如果表中一个字段不是本表的主关键字,而是另外一个表的主关键字或候选关键字,则这个字段称为( )
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【单选题】下列对深基础和浅基础说法,正确的是( )。
A.
当基础埋深大于等于5m的叫深基础。
B.
当基础埋深大于等于基础底面宽度的5倍时的基础叫深基础。
C.
确定基础埋深时，优先考虑浅基础。
D.
基础埋深小于4m,或者基础埋深小于基础宽度4倍的基础叫浅基础。
【简答题】Industrial demand on fuel is increasing. __________
【简答题】Three modes of ship operation: ________ , ________ and industrial operation :There are three basic modes of operation of commercial ships: liner, tramp, and industrial operations. Liners operate acco...
【单选题】In 1981-1983, the world economy suffered a steep recession. Naturally, the fall in industrial countries' aggregate demand had a direct negative impact on the developing countries. What other mechanism...
A.
the immediate steep inflation that followed the recession.
B.
the dollar's sharp depreciation in the foreign exchange market
C.
the increase in primary commodity prices, increasing terms of trade in many poor countries
D.
the collapse in primary commodity prices and the immediate, large rise in the interest burden that debtors had to pay
E.
the influx of defaulting credit
【单选题】、下列对深基础和浅基础的说法,何者是正确的?()
A.
下列对深基础和浅基础的说法,何者是正确的?
B.
当基础埋深大于或等于基础宽度的5倍时,叫深基础
C.
确定基础埋深时,应优先考虑浅基础
D.
基础埋深小于4m或基础埋深小于基础宽度的4倍时,叫浅基础
【简答题】Read the document on energy saving aimed at industrial plant and facility managers. Complete the text using the following words. The first blank is filled in to show you an example. continuous/fluctua...
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