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. to cook B. cooking C. cooked D. cook [单选题]串联电路中各电阻两端电压的关系是( )。
A.各电阻两端电压相等 B.阻值越小两端电压越高 C.阻值越大两端电压越高 [单项选择]超市商品分类用综合分类标准可分为四类。错误的选项是()。
A. 大分类 B. 单品 C. 品项 D. 小分类 [单选题]( )用于产生大流量、远射程、高强度射流,以扑救大规模、大面积火灾。
A.直流水枪 B.空气泡沫枪 C.水(泡沫)炮 D.多用水枪 [单选题]无条件下,可以用电线、铁丝、细绳等作止血带使用。
A.正确 B.错误 [多项选择]干挂法铺贴工艺不适用于()结构基体。
A. 砖墙 B. 加气混泥土墙 C. 新饰面基层 D. 混泥土墙 [单选题]1.177.第177题
氧化锌的伏秒特性一般应()被保护设备的伏秒特性。 A.低于 B.等于 C.高于 D.都可以 [单选题]在发达国家,做慈善回馈社会是不二之选。最近扎克伯格裸捐 450 亿美元,就是对国内富豪的一次有益刺激。只有当“财富积累正当”的议程___________到“财富使用正当”中国富豪的正名之路才算走到尾声。填入画横线部分最恰当的一项是()
A.过渡 B.发展 C.进展 D.进化 [单选题]全党同志一定要团结带领全国各族人民决胜全面建成小康社会,奋力夺取( )中国特色社会主义伟大胜利。
A.新阶段 B.新世纪 C.新时期 D.新时代 [判断题]使用无齿锯进行切割时,可以不按直线移动。( )
A.正确 B.错误 [单选题]已知电路复阻抗Z=(3-j4)Ω,则该电路一定呈()。
A.感性 B.容性 C.阻性 D.说不准 [判断题]巡视室内设备,应随手关门。
A.正确 B.错误 我来回答: 提交
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