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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】It’s a safe bet that David Joyce knows more than you did when you were his birth age. That’s not hard, since what you knew back then was pretty much nothing at all. You knew warmth, you knew darkness,...
A.
nutritionists
B.
dietitians
C.
surgeons
D.
baby-sitters
【多选题】离子注入有下面哪种特点：
A.
掺入杂质的浓度可高于该杂质在硅中的固溶度
B.
掺杂可控性好于扩散
C.
工艺方法简单、成本低
D.
与扩散相比离子注入杂质分布横向效应小
【单选题】采集上述血沉标本后,注入容器的先后顺序是
A.
抗凝试管，干燥试管，血培养瓶。
B.
干燥试管，血培养瓶，抗凝试管。
C.
干燥试管，抗凝试管，血培养瓶。
D.
血培养瓶，干燥试管，抗凝试管。
E.
血培养瓶，抗凝试管，干燥试管。