题目内容
(请给出正确答案)
[主观题]
_3_
提问人:网友psk091210
发布时间:2022-01-07
B.可生成合金FeO· Al2O3,其结构与FeO· Fe2O3相似,使Fe3O4分布均匀,防止Fe晶粒长大,催化剂还原后,使催化剂表面积增大,活性增加。
C.生成的氨不易解吸,会减缓触媒还原速率
D.可使催化剂的金属电子逸出功降低
A、derogatory
B、positive
C、indifferent
D、suspicious
A、Thwarting terrorist attacks is more important than observing human rights.
B、Observing the human rights is more important than thwarting terrorist attacks.
C、Thwarting terrorist attacks should not go ahead at the cost of human rights.
D、Observing human rights should be a precondition for introducing a new law.
A、Comparison.
B、Exemplification.
C、Hypothesis.
D、Parallelism.
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