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【单选题】
What plays an important part when managers want to obtain more knowledge?A.
The course they are attending.
B.
Their purpose.
C.
Their position in the company.
D.
The industry they are in.
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举一反三
【单选题】关于回火索氏体和索氏体的比较错误的是（ ）。
A.
回火索氏体的强度、塑性和韧性均好于索氏体
B.
回火索氏体中的渗碳体为片状，而索氏体中的渗碳体为粒状
C.
回火索氏体是调质处理的结果
D.
索氏体是正火处理的结果
【简答题】索氏体的符号为 [填空(1)]A. S
【简答题】The rules were s______ designed to protect wild animals.
【单选题】The recent fire-related accidents were caused by ______.
A.
strong winds and lack of water
B.
rapid economic growth
C.
locked doors and windows
D.
overcrowded people
【单选题】Between 1638 and 1650 hours this day，strong gusty winds were ______ by my vessel，in consequence of which，the vessel's four mooring lines were broken and her portside gangway severely damaged．
A.
gone
B.
done
C.
had
D.
experienced
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