Technically, yes, it’s possible for you to take two languages. But let’s dissect that a bit. Do you plan to major in Chinese? If so, you’d have a few electives that you could direct toward French. But not many. If you’re not planning to major in Chinese, then you’d have to take both languages via electives. Because the USNA curriculum is so heavily prescribed, there aren’t many elective slots over four years, so in this case you might take 2-3 classes per language at the most, due to availability and scheduling. So again, technically the answer is yes. But practically speaking, manage your expectations carefully.