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【单选题】
命题公式┐(P ↔ Q) 的主极取范式为( );其编码表示为( );主合取式的编码表示为( )A.
(P ∧┐Q)∨(P∧Q); m 2 ∨m 3 ; M 0 ∧M 1
B.
( ┐P∧┐Q)∨(┐P∧Q); m 0 ∨m 1 ; M 2 ∧M 3
C.
(P ∧┐Q)∨(┐P∧Q); m 2 ∨m 1 ; M 0 ∧M 3
D.
( ┐P∧┐Q)∨(P∧Q); m 0 ∨m 3 ; M 1 ∧M 2
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【单选题】By the 1980s, according to international but admittedly inconsistent definitions of literacy, about seven out of ten adults in the world were considered literate. The increase in literacy from ancient...
A.
it is fairly easy to determine literacy.
B.
there is no illiteracy in a rich family.
C.
history sees an even progress towards literacy.
D.
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【判断题】9). Li Shizhen is widely acknowledged as the patron saint of Chinese herbal medicine . ( T)
A.
正确
B.
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【单选题】--- Let’s go shopping online, _________?
A.
will you
B.
can you
C.
shall we
D.
won’t you
【单选题】By the 1980s, according to international but admittedly inconsistent definitions of literacy, about seven out of ten adults in the world were considered literate. The increase in literacy from ancient...
A.
It is fairly easy to determine literacy
B.
There is no illiteracy in a rich country
C.
History sees an even progress towards literacy
D.
In history literacy suffers ups and downs
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