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【单选题】
一封闭绝热钢罐内发生爆炸反应,自反应开始至爆炸前瞬间钢罐内物质热力学能变化 :A.
· <0
B.
>0
C.
· = 0
D.
· 不能确定。
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【单选题】The piano is too big. Can you make_______ for it?
A.
a space
B.
some space
C.
some rooms
D.
some places
【简答题】硫辛酸是一种含( )的C8脂肪酸,以( )和( )存在,硫辛酸是( )和( )的辅酶。
【单选题】Some American people thought that ______.
A.
the government should make some of the huge corporations much smaller
B.
the country's industry was growing too rapidly
C.
shops should have the same price for the same kind of goods
D.
their country's getting rich was both good and bad to the people
【单选题】parents will surely their children.
A.
make no effect on
B.
have some effect on
C.
have no effect on
D.
make some effect on
【单选题】---- I’ve studied gardening as a hobby. Could I make some suggestions? ---- _______.
A.
You will make it.
B.
Go ahead
C.
Don’t mention it
D.
Take it easy
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