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【简答题】
Matthew Webb Electra Company sells (16)............................................ At college, Matthew started (17)............................................ Star Stores Position in company: (18)............................................ Increased market share due to improvements in: (19)............................................ Electra Joined Electra in order to develop his (20)............................................ Present position at Electra UK: (21)............................................ Electra has higher UK turnover because of more (22)............................................
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皮皮学刷刷变学霸
举一反三
【单选题】已知命题p：?x∈R，x 2 +2＞2x，则它的否定是（ ）
A.
?x∈R，x 2 +2＜2x
B.
?x 0 ∈Rx 0 2 +2≤2x 0
C.
?x 0 ∈RX 0 2 +2＜2x 0
D.
?x∈Rx 2 +2≤2x
【简答题】8051内部有 个并行口,P0口直接作普通I/O接口,必须外接 ; 并行口做输入口时,必须先向口锁存器 ,才能读入外设的状态。
【简答题】信息化战争展现的主要特征之一是指挥体制()、二是指挥手段自动化。