Carbon monoxide is dangerous because

A common symptom of carbon monoxide poisoning is （ ）

Hypoxia susceptibility due to inhalation of carbon monoxide increases as（ ）

What gas does not pollute the air A: Oxygen. B: Hydrocarbons. C: Carbon monoxide. D: Nitrogen oxides.

Which of the following would most likely lead to carbon monoxide contamination of the cockpit atmosphere?

The synonym of CO2 is .（ ）。 A: hydrogen B: carbon monoxide C: carbon dioxide D: oxygen

The letters referred to in the first paragraph must have ______. A: complained that carbon monoxide had affected their own ability to think B: complained that carbon monoxide had affected other people's ability think C: opposed the limiting of the use of cars D: proposed the limiting of the use of cars

A bluish discoloration of the skin and mucous membranes is termed_______, which is a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning).

The main air pollutants include : particulate matter, Ground-level ozone, Nitrogen dioxide, sulfur dioxide, carbon monoxide and lead.

Which of the following does not cause skin redness( ) A: Scarlet fever B: Carbon monoxide poisoning C: Atropine poisoning D: Organophosphorus poisoning E: Cushing syndrome