脱硫工艺系统包括7个子系统。()
参考答案:错
亚急性细菌性心内膜炎的发生
A.由致病力强的化脓菌引起B.由致病力弱的草绿色链球菌引起C.与A组溶血性链球菌感染有关D.与系统性红斑狼疮有关E.与慢性消耗性疾病有关
All else being equal, an increase in the price of one product will most likely cause the demand curve of the product's supplement to:()
A. Remain unchanged.
B. Shift upward and to the right.
C. Shift downward and to the left.