问答题

In the writers opinion, what problem affects microwave ovens?
A．Children may misuse them.
B．They are still rather unpopular.
C．Food may not be cooked by alternative methods.
D．Most users do not understand how they work.

A.Children
B.
B．They
C.
C．Food
D.
D．Most
E.

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A．They are easily damaged.
B．It is difficult to operate them.
C．They vary for no obvious reasons.
D．They are complex.

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A．The benefit that the card firms got from the failure of ISIS was temporary.
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