2020年美国大学生数学建模竞赛C题代码.zip

love this ! perfect match for the gund huggybuddy i bought as a baby gift . love my little girl love this paci contraption ! five stars my son loves this one and will only sleep if he has this one . five stars perfect five stars amazing addition to the nursery ! five stars great , breathable , and basic pacifier . five stars great pacifiers does the job the bear does exactly what we ordered it to do . the heartbeat womb sounds helped our first daughter to sleep and she still sleeps with her heartbeat bear she s almost 3 and this is baby number 2 s . i do wish the volume could be turned down more . the bear is also a darker chocolate brown than i anticipated based off the items picture which was disappointing for me . edit once the womb noise times out , restarting it is a hassle . just turning the switch to off and then back on does not work . it requires turning the switch to off multiple times to get it restart the womb noise . sometimes it takes two times . sometimes it takes seven . it s not reliable and i wish i would have purchased a different heartbeat bear . kid loves it , so i do to . baby boy loves it and like to just hold the giraffe . happy kid happy parents we love the nuk brand of bottles and pacifiers and these ... we love the nuk brand of bottles and pacifiers and these pacifiers are no exception ! these are the only brand my kiddos would take . with how easy these can be to lose , this 4 pack is so worth buying ! the colors are exactly as pictured . would recommend buying the pacifiers and bottles together because baby recognizes the nipple and will take them easier . love the othodonic shape its more natural to breastfed babies and i don t have to worry about teeth problems . would definitely recommend this product ! i mustache you a question .. went well with the baby one piece tuxedo . excellent five stars perfect , love ! four stars he likes them over all the others and that s what matters . baby s favorite these are the only type of pacifier that my baby will take ! they stay in his mouth really well compared to other brands we tried . he loves them . five stars very cute love these ! the shape of them allows my daughter ... love these ! the shape of them allows my daughter to get a good suction and they stay in her mouth ! i do not like these pacifiers i do not like these pacifiers the only reason i gave it a high rating is that the animal attached helps the pacifier stay in my child s mouth . five stars good tried many others and this is the best ! this is hands down the best baby monitor on the market . we ve had it for 9 months with no problems . br the camera can move side to side and even zoom . there is a microphone so you can speak to your baby if you want to . br the screen can time out , lighten or darken , and you can use more than one monitor while using 1 screen . we have also dropped this screen on multiple occasions and it has survived with no scratches . br this is the monitor you will want . one star giant , way too big . sizing is way off . needed to be returned . easy to use easy to use , easy for baby to grasp , handy for teething and for dangling toys from play gyms , etc . exactly what i needed excellent product sticks easier than any others i ve tried ! great for limited space purchased this product 20 months ago for my 3rd child and am just now writing a review because i wanted to see how it held up . i still use it everyday for my 19 month old . it is very sturdy and convenient . i rated it 3 stars because when it first arrived i checked the material that holds up up the poles for the different stages and it was coming apart . i wanted to send it back but didn t have time to find something else . i sewed it to reinforce myself . so far that has worked fine . i also wish they sold replacement padding because things happen and it is empossible to find something else the same size if it needs to be replaced adorable this bin is adorable and heavy duty . its not hard sided and will fold in if you lean on it . holds a lot of toys . total junk get a munchkin brush instead the brush unscrews just above the handle it stores a small air vent brush inside and after about a week of using it , the brush would come apart at the screw every time i used it . i wasn t unscrewing it to get the air vent brush since i have one out already , it s just a week point in the design . couldn t use it anymore after a week unless i just used the top brush part without the blue handle section very disappointing . had similar issue with the regular not deluxe dr . brown s brush , which rusted and broke in half just below the top brush section after only a couple weeks . got a munchkin brush and it works great ! we re very happy with this cup we re very happy with this cup . my 8 month old dislikes all bottles and barely drinks from other sippy cups , but she drinks pretty well from this . easy to clean and very cute . overrated didn t work at all would recommend to everyone ! bought this as a gift but have used chicco for my daughter and will for son . super easy to use and love the safety stats on these as well ! ! ! i hate these bags . these bags make it obvious why the lansinoh bags are so popular . br br cons br the medela bags are nearly impossible to get zip closed , and i can never seem to do it without getting milk on the top and air inside the bag . br br they are also horrible for measurement . what looks like 5oz on the bag is actually around 4oz if you measure with a medela bottle . i m not sure how to get the bag to stand up with milk in it and hit the 5oz mark correctly . br br the idea of pumping directly into a bag is fantastic . but i exclusively pump and routinely get 4 5oz from one side , which makes pumping precarious because these bags are nearly full with that amount . br br the medela bags do