{{B}}quEstions 23-26{{/B}}

A、howAiDs sprEADs toAFriCA、
B、how innoCEnt pEoplE ContrACtAiDs.
C、whAt CAn BE DonE to sAvE innoCEnt viCtims oFAiDs.
D、how hiv-positivE pErsons DEvElopAiDs.