关于急性水肿性胰腺炎,下列哪项是错误的()。
A.部分病人可见轻度黄疸
B.持续性腹痛,阵发性加重
C.常继发于胆道疾病
D.多数病人可发生休克
E.少数病人可发生假性囊肿
参考答案:D
— They say Tom's brother is a billionaire.
— ________? He wouldn't accept any help from his brother, even though it was offered. [ ]
A. What if
B. What for
C. So what
D. Forget it
某化工厂甲、乙两车间排放的废水中,分别含有较多量的Na2CO3和有毒物质CuSO4,两车间排放的废气中含有较多的SO2等有害气体。环保部门建议选用生石灰、铁屑和水等廉价易得的原料,综合治理上述污染,并回收得到铜和亚硫酸钠等有用物质。写出实现上述要求的化学方程式。(可不填满)
________________________________________________________________________;
________________________________________________________________________。