单项选择题

A．It may easily go wrong and any unsaved work disappears.
B．It crashes the computer easily.
C．It may attract the thunder.
D．It consumes more power.
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单项选择题
A．The growing work force provides it with more workers.B．The government taxes it lighter than before.C．Many people no longer cook at home.D．Highly educated work force improves its work efficiency.
A．The growing work force provides it with more workers.
B．The government taxes it lighter than before.
C．Many people no longer cook at home.
D．Highly educated work force improves its work efficiency.
单项选择题
A．Tom is advised not to talk much.B．Tom isn’t good at singing.C．Tom just had a surgery on his throat.D．Tom is encouraged by his doctor to speak more.
A．Tom is advised not to talk much.
B．Tom isn’t good at singing.
C．Tom just had a surgery on his throat.
D．Tom is encouraged by his doctor to speak more.
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