单项选择题

The underlined word" carbon" (Par

A．2) stands for_______.A. its intelligence and cost are beyond questionB. it is able to bear the rough environmentC. it is made as complex as the human brainD. its architecture is different from that of the present ones
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单项选择题
The shopper gets rid of the wrapper immediately because______.
A．he is careless.
B．it adds to the weight.
C．it is difficult for him to handle.
D．it has no importance for him.
单项选择题
According to the author, the packaging industry is_______.
A．full of capable people.
B．rather disorganized.
C．very worried about waste.
D．full of people with different opinions.
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