【判断题】运动的物体自己有能力保持速度,不需要外力来帮助运动
【单选题】For the worsening weather conditions, the fire season has grown longer and more ___ due to climate change.
【简答题】It can be difficult to _______________ climate conditions indoors.(v. 控制)
【简答题】The spleen prefers a dry environment, so it is prone to conditions of_________ from climate and dietary factors, such as raw foods.
【多选题】空气幕是由空气处理设备、通风机、风管系统及空气分布器组合而成的一种产品,其作用是( )。
【多选题】How did the natural conditions such as georgraphy, climate in ancient China make a differnce in China's history and culture?
A.
contributed to an independent civilization.
B.
hindered its continuous progress.
C.
cultivated such features as unambitious and peaceful in Chinese people。
D.
led to the arrogant belief and conservative concepts.
【简答题】陶瓷生产中,烧还原气氛的隧道窑为何要在烧成带内气氛如何分布?为何这样分布?使用何种气幕及作用?
【单选题】利用人造烟幕可以在一定程度上防御霜冻,因为人造烟幕能使大气的 [ ]