B (Ở CÂU 1 ĐOẠN 1 “PERSONAL COMPUTERS, OR PCS, ARE AN IMPORTANT PA...
28. B (ở câu 1 đoạn 1 “Personal computers, or PCs, are an important part of our
everyday lives”)
28. B (ở câu 1 đoạn 1 “Personal computers, or PCs, are an important part of our
everyday lives”)