单选题
发布日期:2021-03-22
used in either the fully dosed or fully opened position
installed with the stem down
used for steam service only
used to throttle or regulate the flow of liquid
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推力减额的尺度效应不可以忽略。
体现满足现代需要与防止危害未来相统一原则的是()。
已封存的印章,交接时应在()同时在场的情况下拆封清点。
在高饱和度的颜色中混合白色,则明度(),混入灰色或黑色,则明度()。
患者,女性,32岁。全身泛发性风团3个月,难自行消退,触之有浸润感,皮损消退后遗留色素沉着,自觉局部有烧灼感,伴有不规则发热、关节疼痛,血常规提示WBC9×109/L、N92%、L7%、PLT230×109。ESR42mm/h,血清C3、C4低于正常水平。 结合其病史特点,该患者的诊断为()
中国公民信仰的四大宗教是( )。
医疗侵权赔偿责任中,医疗过错的认定标准是()
以下醇①丙醇、②2-丙醇、③叔丁醇、④丙烯醇⑤甲醇与乙酸的酯化反应速度顺序为()
总线式工控机与通用微型机相比较,其特点是什么?
数字说明法是一种引用具体数字精确地说明事物的形体特征、性能特点和功用大小的方法。可以用( )。
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