【简答题】【消耗次数：1】
求公式“(pú (qùr)) ? (púqúr)”的主析取范式。
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公式“(pú (qùr)) ? (púqúr)”的主析取范式为:[填空1]
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【单选题】
公式(P→Q)→(P→R)的成假指派为( ) (按(P, Q, R)的顺序)。
①
(0, 1, 0)
②
(1, 0, 0)
③
(1, 1, 0)
④
(1, 1, 1)
随机题目
【单选题】
—Can you take the day off tomorrow?
—Well, I’ll have to get ____ from my boss.
①
permission
②
permit
③
allowance
④
possession
【单选题】
The house is made of wood and straw, and____to collapse
in a heavy storm.
①
reliable
②
liable
③
easy
④
probable
【单选题】
____ the water left in the kettle, the doctor put several things he unwrapped from a handkerchief.
①
At
②
To
③
Within
④
Into
【单选题】
After ____ seemed an endless wait, it was her turn to step into the doctor’s office.
①
it
②
that
③
what
④
which
【单选题】
He wrote the book in ____ with his wife.
①
proportion
②
installment
③
correspondence
④
collaboration
【单选题】
His decision was ____, since he could not see the action
from where he was standing.
①
arbitrary
②
ordinary
③
casual
④
accurate
【单选题】
Operations which left patients ____ and in need
of long periods of recovery time now leave them
feeling relaxed and comfortable.
①
exhausted
②
unhealthy
③
upset
④
fearful
【单选题】
Mother told Rose to buy some sugar in the supermarket
and_____.
①
she did so
②
so she did
③
so did she
④
she did such
【单选题】
The bank is reported in the local newspaper ____ in broad daylight yesterday.
①
to be robbed
②
robbed
③
to have been robbed
④
having been robbed
【单选题】
The thieves ____ the waste paper all over the room while they were searching for the diamond ring.
①
spread
②
scratched
③
scattered
④
burned