[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-B2-1176":3},{"preview":4,"open":14,"missing":37},{"id":5,"number":6,"total":7,"level":8,"course":9,"activity":10,"discriminator":11,"title":12,"slug":13,"instructions":14,"excerpt":15,"prompts":16,"lock":19,"access":20,"updated":21,"previous_id":22,"next_id":23,"previous":24,"next":28,"first":32},1176,66,68,"B2","reading","multiple_matching","reading_multiple_matching","Ingenious Ancient Inventions","ingenious-ancient-inventions",null,"Discovered in an ancient Mesopotamian tomb, this seemingly ordinary clay jar continues to completely baffle modern archaeologists. Inside the small vessel, excavators found a copper cylinder surrounding a solid iron rod, which scientists believe was originally filled with an acidic liquid, like vinegar or grape…",[17,18],"Which invention relied on highly reflective materials to effectively redirect natural rays of light?","Which invention may have been intended strictly to beautifully decorate items of personal adornment?","login","pro","2026-10-02T14:14:49",1175,1177,{"id":22,"number":25,"title":26,"slug":27},65,"Bizarre Botanical Wonders","bizarre-botanical-wonders",{"id":23,"number":29,"title":30,"slug":31},67,"Fascinating Lost Treasures","fascinating-lost-treasures",{"id":33,"number":34,"title":35,"slug":36},1111,1,"Bridges of the Valley","bridges-of-the-valley",false]