关于细胞全能性的理解不确切的是 A .大量的科学事实证明,高度分化的植物体细胞仍具有全能性 B .细胞内含有个体发育所需的全部基因是细胞具有全能性的内在条件 C .通过植物组织培养得到的试管苗,是植物细胞在一定条件下表现全能性的结果 D .通过动物细胞培养获得细胞株或细胞系,证明了动物体细胞也具有全能性
【单选题】The use of heat pumps has been held back largely by skepticism about advertisers’ claims that heat pumps can provide as many as units of thermal energy for each unit of electrical energy used, thus ap...
A.
Concentrate your advertising firmly on financially relevant issues such as price discounts and efficiency of operation.
B.
Focus your advertising campaign on vague analogies and veiled implications instead of on facts.
C.
Do not use facts in your advertising that will strain the prospective client's ability to believe.
D.
Do not assume in your advertising that the prospective clients know even the most elementary scientific principles.
【简答题】This graph shows the relationship between demand for energy and the energy available from fossil fuels in S omeland since 1995 and gives projections to the year 2015. The energy in the graph is measur...