The answer is four times the root sign of 15. Generally, it is not given. There is no middle score between math multiple-choice questions and fill-in-the-blank questions. If you grade according to the answers, it is not enough to add a punctuation mark. But depending on the region, if the title (or the total score this year is too low, it is likely to be given) and the unit in brackets, it is really easy to mislead everyone to write the unit. If you say give it to the unit, give it to the white. How happy everyone is after you set the line. Anyway, I think it's quite possible to give it. Considering that it is a national second volume, the score will certainly not be as strict as that of Hebei and other provinces, but it is easy to have surprises with the mentality of not giving points. Hope to adopt. Have a nice holiday _