Answer:
a change from a seronegative to a seropositive condition
Explanation:
I believe the answer to your question will be atrioventricular but don't cross out pulmonary it could possibly be the answer.
Answer:
make sure your buildings are in good repair.
maintain the workplace and any equipment so that it is safe and works efficiently.
put right any dangerous defects immediately, or take steps to protect anyone at risk.
take precautions to prevent people or materials falling from open edges, eg fencing or guard rails.
Explanation:
Answer:
1. They suck 2. They suck
Explanation: