Class environment could significantly predict students' school liking and avoiding and learning behavior, but the direct effects on learning behavior were lower than the indirect effects.

班级环境对学生的学校喜欢、学业行为有显著的正向预测作用，对学校回避有显著的负向预测作用，对学业行为的间接作用大于其直接作用。

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Understand the direct M and N effects of acetylcholine and indirect M and N effects of anti-cholinesterase Self-learn the process of hydrolysis of acetylcholine by cholinesterase.

了解乙酰胆碱直接产生的 M、N 样作用、抗胆碱酯酶药间接产生 M、N 样作用方式。 自学胆碱酯酶水解乙酰胆碱的过程。

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The researchers suggest that these fluctuations may have direct effects on airways. and indirect effects on inflammatory responses to infection.

BBC: Hormones in menstrual cycle 'affect asthma'

Whatever the source, the researchers are concerned that this warming can lead to more melting and have direct and indirect effects on global sea levels.

BBC: West Antarctic Ice Sheet warming twice earlier estimate

The UN has appointed a special rapporteur on the right to food, Olivier De Schutter, who has sharply criticised the direct and indirect effects of biofuels on the poor.

BBC: EU acts against harm from biofuel crops