[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f0jEwqKZefW1B863P_XBZWTFBRWaX1E-KKV7NZUZG-zw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2025-03-28 16:09:18",180610595,[8,9,10,11],"given away","immediately destroyed","priced down","used by the sword-maker",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},8,"0c7b4436aace1240b0876e3fa3335147","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb1b1908b1cca06c96be5f97e1e104d87.png","24252工程学科英语","work_41342105","Unit 7 科技小短文 07","In Japan, the making of samurai swords is a highly developed art. The swords are fashioned entirely by hand. Since no one would use an imperfect swords, there are no "seconds" among samurai swords. Each new sword is carefully tested by its maker; and if it fails to meet the required standard, it is ______",[21,26,35,44,53,63,72,81],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],180610596,[30,31,32,33],"no bubbles escape to the surface","the diver is down too deep","the apparatus blends with the sea","there is not boat in sight","Many deep-sea divers are lowered and raised by a crew on the surface and receive their oxygen supply through tubes to the surface. Skin-divers use an independent system called scuba, self-contained underwater breathing apparatus. Open-circuit scuba equipment allows bubbles of air to come to the surface. Navy skin-divers use a closed or semi-closed circuit apparatus. With this type of apparatus, the enemy cannot detect the diver's presence because ______",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],180610597,[39,40,41,42],"strength","dryness","age","thickness","Many of the regions where timbers-producing forests grow are places of heavy rainfall. The freshly cut trees contain too much moisture for first quality lumber. The lumber is heated in kilns, which are carefully controlled so that the lumber comes out having the proper ______",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],180610598,[48,49,50,51],"alcohol","glass","mercury","metal","Mercury freezes at a higher temperature than alcohol does. In extremely cold climates, thermometers are filled with ______",{"answer":54,"createTime":55,"id":56,"options":57,"question":62,"source":24,"type":25},[],"2025-03-28 16:09:19",180610599,[58,59,60,61],"a handmade garment","an expensive product","lace garments","nothing valuable","Forty persons working seven years fashioned a beautiful handmade lace garment. Lace-making machines can produce the lace for a beautiful garment in a few hours at a fraction of the cost of handmade lace. This makes it possible for more people to have ______",{"answer":64,"createTime":55,"id":65,"options":66,"question":71,"source":24,"type":25},[],180610600,[67,68,69,70],"fire fighters","lifeguards","deep-sea divers","arctic explorers","A specially treated glass fabric that is able to withstand terrific heat is now available. Only a few layers of this fabric can afford protection and still allow bodily movement. Suits of this material are used by ______",{"answer":73,"createTime":55,"id":74,"options":75,"question":80,"source":24,"type":25},[],180610601,[76,77,78,79],"tableware","copper tubing","lightweight luggage","expensive necklaces","Stainless steel is an alloy of iron and chromium, or of iron, chromium, and nickel. It is practically free of the problems of rust and ordinary corrosion. It looks much like silver, but is not nearly so expensive. Because of its low cost, resistance to tarnish, and its beauty, stainless steel has become very popular for ______",{"answer":82,"createTime":55,"id":83,"options":84,"question":89,"source":24,"type":25},[],180610602,[85,86,87,88],"the local cinema","a very slow rate of speed","some later time","a rate of 100,000 pictures a minute","A high-speed motion picture camera can take pictures per second at a rate close to infinity. An event that occurs too rapidly to be observed with the unaided eye can be recorded with such a camera. Then the event can be seen in detail when the motion picture is shown at _____"]