[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fx7ojI-80Zi3BY9bey1OY1G_lIxVOGmMrn7cHCiHIdHc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":32,"type":33},[],"2023-06-26 20:45:42",84489253,[8,9,10,11,12],"scallops","cuttlefishes","toothshells","nautiloids","squids",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},43,"dac14bef27a421d16f4b3f9c542694fe","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4bd6b37f2f9c76835ccb1ca9d93a4190.jpg","普通动物学（上）","308dac44caea4c928aab83782d4d85bf","Test 9","The only living cephalopods that possess an external shell are the( )",[22,34,44,53,63,69,79,88,98,108],{"answer":23,"createTime":5,"id":24,"options":25,"question":31,"source":32,"type":33},[],84489214,[26,27,28,29,30],"glochidium","trochophore","pilidium","dipleura","cercoid","The modified veliger of some freshwater bivalves is called the ( )","v1",0,{"answer":35,"createTime":5,"id":36,"options":37,"question":43,"source":32,"type":33},[],84489215,[38,39,40,41,42],"radular","prismatic","nacreous","helix","periostracum","The inner layer of the mollusc shell is the ( ) layer",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":32,"type":33},[],84489216,[48,42,49,50,51],"umbo","hinge ligament","left valve","right valve","The oldest part of the bivalve shell is the ( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":62,"source":32,"type":33},[],84489217,[57,58,59,60,61],"Gastropoda","Bivalvia","Cephalopoda","Polyplacophora","Scaphopoda","The most complex molluscs belong to the class( )",{"answer":64,"createTime":5,"id":65,"options":66,"question":68,"source":32,"type":33},[],84489218,[57,67,59,61,60],"Aplacophora","Solenogasters are cylindrical molluscs that lack a shell; they belong to the class ( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":78,"source":32,"type":33},[],84489219,[73,74,75,76,77],"a hydraulic skeleton","special extensor muscles","tendons and ligaments","a system of levers","muscles and levers","Among molluscs, extension of body structures such as tentacles is accomplished by ( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":32,"type":33},[],84489220,[83,84,85,86,8],"clams","mussels","oysters","chitons","Which of the following is not a member of the class Bivalvia",{"answer":89,"createTime":5,"id":90,"options":91,"question":97,"source":32,"type":33},[],84489221,[92,93,94,95,96],"head-foot and visceral mass","mantle and foot","head-foot and enterocoel","visceral mass and mantle","head and foot","The body of molluscs is divided into two main regions called the ( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":107,"source":32,"type":33},[],84489222,[102,103,104,105,106],"endoskeleton","exoskeleton","pneumo","hydraulic","hepatic","Molluscs possess this type of skeleton",{"answer":109,"createTime":5,"id":110,"options":111,"question":117,"source":32,"type":33},[],84489223,[112,113,114,115,116],"cephalopods","octopods","gastropods","solenogasters","monoplacophorans","The segmental arrangement of gills, excretory structures, and nervous elements in the ( ), make them seem like a "missing link" between molluscs and the annelid-arthropod line"]