【单选题】The increase in traffic _____ to the growing pollution levels in this city.
【简答题】The research effort has __________ on tracing the effects of growing levels of five compounds.
【单选题】国家对进口涂料实行登记备案和专项检测制度。范围包括( )中编码为3208、3209项下的商品
【单选题】Which stage of the product life cycle does rapidly rising sales, very high profit levels, and a growing number of competitors characterize?
【单选题】Growing levels of pollution represent a serious health ________ to the local population.
【多选题】国家对( )实行登记备案和专项检测制度。
【单选题】国家对( )实行登记备案和专项检测制度。
【单选题】There is growing public ________ over levels of air pollution in our cities.