单项选择题

Our project must proceed at a reasonably quick tempo. Surely one month is ample time, ( )

A．isn't it
B．is it
C．it isn't
D．it is
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单项选择题
汉译英：“收款人；说明书”，正确的翻译为：( )
A．payee; specimen
B．payer; specimen
C．payer; specification
D．payee; specification
单项选择题
I'm really positive that this product ( ) all the features you have always wanted.
A．is
B．are
C．have
D．has
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