题目内容
(请给出正确答案)
[主观题]
m_________ n.very bad luck or sth.that happens to you as a result of bad luck.
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A.n(Ba)=2n(Na2S2O3)
B.n(Ba)=6n(Na2S2O3)
C.n(Ba)=12n(Na2S2O3)
D.n(Ba)=n(Na2S2O3)
A.BA系统故障时阀门触发了开信号由1变0,关的信号不变为1,阀门立即关闭
B.BA系统故障时阀门触发了开信号由1变0,阀门立即关闭
C.BA系统故障时阀门触发了开信号由1变0,关的信号不变为1,阀门不动作
D.BA系统故障时阀门不再接收BA系统发来的信号