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一般用途化妆品卫生化学检验指标限值中的甲醇( )。
国际平常函件主要采用()收寄方式。
中央银行作为政府的银行,其职能包括()。
构成舞蹈的要素是表情、节奏、构图和韵律。
行为识别系统由()和()识别子系统构成。
已知椭圆的左、右焦点分别为F1,F2,点M在该椭圆上,且,则点M到y轴的距离为____.
同业拆借的最长期限不得超过()。
当()时,表明旅游要求价格弹性较小,旅游需求曲线表现得比较陡峭。
未设调车信号机或调车信号机故障停用,以及调车作业压岔、压轨道(侵限)绝缘节等原因,调车信号机不能开放时,应执行()调车规定
急性粟粒性肺结核肺部X线特点有()
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The crankpins and journals were machined and matching holes bored in the webs, w...
The crankpins and journals were machined and matching holes bored in the webs, w...
The diameters of the crankpins should be measured using ().
The diameters of the crankpins should be measured using ().
Cast iron carrier rings, () machined grooves, are provided for all the pistons.
The plunger is machined to very fine tolerances, as is the matched()in which it ...
The plunger is machined to very fine tolerances, as is the matched()in which it ...
Cast iron carrier rings, () machined grooves, are provided for all the pistons.