1. Please list the main purposes of BOD5 test for wastewater treatment and waterbody remediation. Please discuss the effects of temperature of wastewater on its treatment unit unit/process selection(in English, 15%)

Chapter 14-Learning objectives Differentiate between nonparametric and parametric hypothesis tests Determine when a nonparametric test should be used instead of its parametric counterpart Appropriately apply each of the nonparametric methods introduced o 2002 The Wadsworth Group

l Chapter 6- Learning objectives Distinguish between discrete and continuous randomⅴ ariables Differentiate between the binomial and the poisson discrete probability distributions and their applications Construct a probability distribution for a discrete random variable, determine its mean and variance, and specify the

Earth's Internal Structure When a meteorite impacts a planet or moon, its energy of motion (called kinetic energy)is transformed into heat energy. As Earth grew larger and larger from continual impacts, its temperature increased. Radioactive decay of materials like uranium, thorium and potassium also added heat

Section 3 Effect of Environmental Conditions on Microbes 环境条件对微生物的影响 Section 4 微生物培养法概论 Section 5 有害微生物的控制