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【单选题】
Helen was much kinder to heryoungest son than to the others, ,of course , made the others envy him .A.
who
B.
that
C.
what
D.
which
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【简答题】The food we eat seems to have profound effects on our health. Although science has made enormous steps in food more fit to eat, it has, at the same time, made many foods unfit to eat. Some rese...
【单选题】The Project Management Triangle is a model of the constraints of project management. These constraints have been listed scope (or quality),(), and cost.
A.
resource
B.
time
C.
plan
D.
tool
【单选题】甲在木桶里养了一条毒蛇，一日外出，便将木桶盖紧，委托给乙看管，丙和丁到乙家里玩，当丙得知木桶里装着蛇时，好奇心起，趁乙不在时，不顾丁的劝告，将木桶的盖子打开看蛇，结果被蛇咬伤。丙的受伤应由（）。
A.
蛇的所有人甲负责
B.
蛇的看管人乙负责
C.
第三人丁负责
D.
受害人丙自己负责
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【简答题】The food we eat seems to have profound effects on our health. Although science has made enormous steps in food more fit to eat, it has, at the same time, made many foods unfit to eat. Some rese...
【单选题】下列说法中错误的是( )。
A.
当发生沙尘暴时，要戴口罩以减少尘埃的吸入
B.
在剧毒的环境中，人们应戴防毒面
C.
尘肺患者会出现恶心、呕吐等症状
D.
尘肺是长期在粉尘较多的场所工作的人容易患的一类职业病
【简答题】The food we eat seems to have profound effects on our health. Although science has made enormous steps in food more fit to eat, it has, at the same time, made many foods unfit to eat. Some rese...
【判断题】如车架变形严重时,可将车架拆散,对纵、横梁分别进行矫正,然后重新铆合,必要时可采用中性氧化焰或木炭火将变形部位局部加热至暗红色进行热矫正(加热温度不得低于 700 °C ,以免影响车架性能)。
A.
正确
B.
错误
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