记下可减免课税的开支，比如买的原料和设备。Keep track of tax-deductible expenses, such as the supplies and equipment you buy.比尔·布拉德利参议员概述了自己的减税计划，提出每个孩子可为家庭减免350美元的课税。Senator Bill Bradley outlined his own tax cut, giving families $350 in tax ...
The traditional herbicide is still dominating the present agrochemical market.在目前的农药市场中,传统除草剂仍是除草剂市场的主体.The green agrochemical contains light - sensitive pesticide, trans - gene pesticide , biopesticide, etr.绿色农药包括手性农药 、...
The number of cationic bromine and chlorine compounds is restricted.溴、氯阳离子化合物的数量受局限.Derivatives of bromine are much more active than the corresponding one of chlorine.溴的衍生物的活性要比相应的氯的衍生物大得多.The existing bromine in acetic ...