孕妇29岁，孕37周，G2P0，前置胎盘入院。现有少量阴道流血，孕妇担心胎儿安危会产生的心理问题是
B
暂无解析
Inmostcitiesandtowns,thehighvolumesofroadtrafficbecomeaproblem.Whatarethecausesofthatandwhatactionscouldbetakentosolvetheproblem?
Inthepast,peopleusedtotravelabroadtolookmanydifferences.Nowadays,placesallovertheworldaremoreandmoresimilar.Whatarethecausesofthesimilarity?Doyouthinktheadvantagesofthisproblemoutweighthedisadvantages?
Shonahaslearntfromtheresearchprojectthat____.