Q: it was quite mysterious why cd4 t cell population shrank in hiv-infected patients.
A: It was quite mysterious why CD4 T cell population shrank in HIV-infected patients.

Q: step b: after clicking on "scan" button, the progress will be shown as below figure b.
A: Step B: After clicking on "Scan" button, the progress will be shown as below figure B.

Q: in seconds, you will learn exactly what type of rk file you have, the software program associated with your file, the publisher who created it, its security safety status, and a variety of other useful information.
A: In seconds, you will learn exactly what type of RK file you have, the software program associated with your file, the publisher who created it, its security safety status, and a variety of other useful information.

Q: room service is available.
A:
Room service is available.