{"type":"multi-choice","id":"72171","dataJson":{"key":0,"prompt":"什么是复合材料？","options":[{"key":"0.9554303368401549","label":"完整的材料","value":"A complete material"},{"key":"0.1031756120761782","label":"比赛的材料","value":"A competitive material"},{"key":"0.8329554488428025","label":"可降解材料。","value":"A compostable material."},{"key":"0.8625500032401302","label":"由两种或更多不同的材料制成的材料。","value":"A material made of two or more different materials."}],"limitChoices":{"max":1,"min":1},"validResponse":["A material made of two or more different materials."]}}

{"type":"multi-choice","id":"72172","dataJson":{"key":1,"prompt":"选出复合材料","options":[{"key":"0.9959353738029932","label":"纸板","value":"cardboard"},{"key":"0.9184059848507117","label":"玻璃纤维丝","value":"fibreglass"},{"key":"0.24580353712325576","label":"制型纸","value":"papier-mâché"},{"key":"0.45892459555955734","label":"聚苯乙烯","value":"polystyrene"},{"key":"0.04245155049190974","label":"胶合板","value":"plywood"},{"key":"0.17229736585762556","label":"钢筋混凝土","value":"reinforced concrete "}],"limitChoices":{"max":4,"min":4},"validResponse":["fibreglass","papier-mâché","plywood","reinforced concrete "]}}

{"type":"multi-choice","id":"72173","dataJson":{"key":2,"prompt":"碳纤维是一种高强度轻质复合材料。它可以用来制作以下哪些物品？","options":[{"key":"0.4029944450026358","label":"自行车架","value":"bicycle frames"},{"key":"0.3896323463394872","label":"相框","value":"photo frames"},{"key":"0.5442126751305474","label":"头盔","value":"helmets"},{"key":"0.7096934986656599","label":"烤箱手套","value":"oven mits"}],"limitChoices":{"max":2,"min":2},"validResponse":["bicycle frames","helmets"]}}

{"type":"multi-choice","id":"72174","dataJson":{"key":3,"prompt":"建造摩天大楼等非常巨大的结构要用复合材料。","options":[{"key":"0.8813439684575805","label":"正确","value":"true"},{"key":"0.4591468463593006","label":"错误","value":"false"}],"limitChoices":{"max":1,"min":1},"validResponse":["true"]}}

{"type":"fill-in-blanks","id":"72175","dataJson":{"key":4,"prompt":"选择正确的词语。","options":{"tough":[{"label":"易碎","value":"brittle"},{"label":"易延展","value":"ductile"},{"label":"坚固","value":"tough"}],"plastic":[{"label":"混凝土","value":"concrete"},{"label":"玻璃","value":"glass"},{"label":"塑料","value":"plastic"},{"label":"木材","value":"wood"}],"properties":[{"label":"颜色","value":"colours"},{"label":"性质","value":"properties"},{"label":"质地","value":"textures"}],"lightweight":[{"label":"柔软","value":"flexible"},{"label":"密实","value":"highly dense"},{"label":"轻质","value":"lightweight"}],"more than one material":[{"label":"混凝土","value":"concrete"},{"label":"塑料","value":"plastic"},{"label":"木材","value":"wood"},{"label":"多种材料","value":"more than one material"}]},"template":"复合材料由{{more than one material}}制成。这是为了结合各种材料的{{properties}}。例如，玻璃纤维由玻璃和{{plastic}}制成，这使玻璃纤维{{tough}}且{{lightweight}}。","validResponse":{"tough":"tough","plastic":"plastic","properties":"properties","lightweight":"lightweight","more than one material":"more than one material"}}}

Answer incorrect

Look at the slide below to work out the answer.