單項選擇題

Changing rescuers while carrying out artificial respiration should be done（）.

A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten-minute intervals

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單項選擇題

An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.

A.Flow
B.Breakout
C.Kick
D.Blowout

單項選擇題

All the traces are（）old ones.

A.Clear
B.Evident
C.Obvious
D.Apparently

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Changing rescuers while carrying out artificial respiration should be done（）.

你可能感興趣的試題

An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.

All the traces are（）old ones.

An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.