皮皮学，免费搜题
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【单选题】
急性一氧化碳中毒最有价值的诊断指标是A.
血pH
B.
血电解质
C.
血COHb
D.
脑电图
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皮皮学刷刷变学霸
举一反三
【单选题】The author believes that nobody can keep his personal data secret because______.
A.
one's personal information is easily accessible to many people
B.
identity theft has been increasing much faster than ever before
C.
personal information is needed to create an identifying code
D.
more companies have relocated their call centers overseas