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【判断题】
磷脂悬浮分散在水溶液中,可自发膨胀成多层封闭球形结构称多层脂质体。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】At a certain point in space the electric potential is 20 V. A 4.0-μC charge is brought from infinity to that point. What is the electric potential energy of this charge at that point?
A.
- 80 μJ
B.
80 μJ
C.
- 20 μJ
D.
20 μJ
【单选题】_________, or energy carrier, is an energy form which has been transformed from primary energy sources. Electricity is one of the most common energy carriers, being transformed from various primary en...
A.
By-product
B.
Secondary energy
C.
Transformative energy
D.
Renewable energy
【简答题】一条染色体(未复制的)是____条DNA分子
【单选题】次数分配数列是
A.
按数量标志分组形成的数列
B.
按品质标志分组形成的数列
C.
按统计指标分组所形成的数列
D.
按数量标志和品质标志分组所形成的数列
E.
以上都不对
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