我国允许用作甜味剂的是()
A.苯甲酸、山梨酸
B.叔丁基羟基茴香醚、没食子酸丙酯
C.硝酸盐、亚硝酸盐
D.硫磺、亚硫酸钠
E.甘草、甜叶菊苷
参考答案:E
Being a parent is not always easy, and being the parent of a child with special needs often carries
with ____extra stress. [ ]
A. it
B. them
C. one
D. him
下列何种药物具有抑制胃酸分泌的作用
A.碳酸钙B.三硅酸镁C.氢氧化铝D.西咪替丁E.氢氧化镁