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【单选题】
竞争性抑制磺胺类药物抗菌作用的是A.
PABA
B.
6-APA
C.
TMP
D.
7-ACA
E.
GABA
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举一反三
【单选题】Speech act theory did not come into being until _________.
A.
in the late 50’s of the 20th century
B.
in the early 1950’s
C.
in the late 1960’s
D.
in the early 21st century.
【简答题】建筑高度超过( )m,无论是居住建筑还是公共建筑,均称为超高层建筑。
【简答题】关系表达式的值非真即假。当关系表达式成立时,关系表达式的值为 (真);当关系表达式不成立时,其值为 (假)
【单选题】Speech act theory did not come into being until __________.
A.
in the late 1950s
B.
in the late 1960s
C.
in the late 1970s
D.
in the early 21st century
【单选题】Speech act theory did not come into being until ________.
A.
in the late 1950’s
B.
in the early 1950’s
C.
in the late 1960’s
D.
in the early 21st century
【单选题】Speech act theory did not come into being until
A.
the late 50's of the 20th century.
B.
the early 1950's of the 20th century.
C.
the late 1960's of the 20th century.
D.
the early 21st century.
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