皮皮学，免费搜题
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【单选题】
8421BCD 码 10010110 的真值是A.
+96D
B.
+226Q
C.
+96H
D.
-16D
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参考解析：
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皮皮学刷刷变学霸
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
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