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【多选题】
当前,用工厂化育苗的方法,培育商品化的穴盘幼苗时,可以选用的基质有( )。A.
利用草炭、蛭石、珍珠岩等单一基质自行配制的育苗用复合基质。
B.
含有预混肥料的商品基质。
C.
育苗者因地制宜利用当地材料开发的复合基质。
D.
用陶粒、砾石等容易清洗并容易与根系分离的洁净材料混配复合基质。
E.
为降低成本，用土壤、有机肥、化肥等按比例混合配制营养土代替基质。
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举一反三
【多选题】Which of the following statements are true about the relationship between medical ethics and medical morality?
A.
Medical ethics and medical morality is different terms used at different times.
B.
Medical ethics cover more aspects of medical practice than medical morality.
C.
The medical ethics emerged later than medical morality and have replaced traditional medical morality.
D.
On the basis of medical morality, the medical ethics makes further development and carries out the observation and consideration.
【单选题】The American Medical Association and the Association of American Medical Col-leges took the responsibility
A.
to ban those proprietary schools of medicine.
B.
to build up relations between medical schools and hospitals.
C.
to ensure the quality of medical teaching and practice.
D.
to prevent some medical schools from making too much profit.
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