The first man who cooked his food,
instead of eating it raw, lived so long ago that we have no idea who he was or
where he lived. We do know, however, that (41) thousands of
years food was always eaten cold and (42) . Perhaps the
cooked food was heated accidentally by a (43) fire or by the
melted lava from an erupting (44) . When people first tasted
food that had been cooked, they found it tasted better. However, (45)
after this discovery, cooked food must have remained a rarity
(46) man learned how to make and light (47)
. Primitive me A. zone B. sector C. method D. fashion [单选题]下列不属于常规救生装备的为( )。
A.救生绳 B.固定抬板 C.消防救生气垫 D.牵引绳 [多选题]县级行社开展理财业务,应当确保每只理财产品与所投资产相对应,做到每只理财产品()、()和()。
A.单独管理 B.统一建账 C.单独核算 D.单独建账 [单选题]CRH2(统型)动车组大走廊翻板凳检查手动,翻转翻板凳,翻转翻板凳至行程最低端,应上翘一点(约
为()度),左右摇动检查翻板凳无松动。
A.3~10度 B.3~5度 C.1~5度 D.3~9度 [单选题] 《电力安全工作规程》是依据国家有关法律、法规,结合华能集团()制定的。
A.国际惯例 B.我国国情 C.电力生产的实际情况 [判断题]锚杆(索)支护质量验收包括沿空留巷中围岩补强支护质量验收和沿空(墙)掘巷锚杆(索)支护质量验收。
A.正确 B.错误 [单选题]3.281.第281题
电e宝的支付密码与登录密码可以相同。 A.正确 B.错误 [判断题]超声波入射到C1>C2的凸曲面时,其透过波集聚。
A.正确 B.错误 [判断题]《抗日救国十大纲领》是在1937年洛川会议上提出来的。 ( )
A.正确 B.错误 [判断题]提高蜗杆副接触精度就应保证蜗杆螺旋面与加工蜗轮刀具的一致性。
A.正确 B.错误 [多项选择]节能灯的色温常用()
A. 6500K B. 6000K C. 2700K D. 4000K [单项选择]阿昔洛韦的化学名为( )。
A. 9-(2-羟乙氧甲基)鸟嘌呤 B. 9-(2-羟乙氧甲基)黄嘌呤 C. 9-(2-羟乙氧甲基)腺嘌呤 D. 9-(2-羟乙氧乙基)鸟嘌呤 E. 9-(2-羟乙氧乙基)黄嘌呤 [单选题]系绳是把安全网固定在( )上的绳。
A.支撑物 B.节点 C.平台 D.网体边缘 [多选题]《南昌局集团公司动车组接送车及试运行管理办法》(南铁辆〔2018〕179号)动车组或()检修周期超期时严禁上线运行。
A.行车安全设备 B.ATP C.LKJ D.CIR [多选题]安全带因过度磨损或损坏,包括( )等情况,应予以报废。
A.切割; B.刺穿或烫伤; C.光照; D.撕裂。 我来回答: 提交
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