下列反应的离子方程式不正确的是[ ]
A.向烧碱溶液中滴加少量氯化铝溶液
B.物质的量相等的溴化亚铁跟氯气反应
C.硫化钾晶体溶于水
D.向碳酸钠溶液中滴加过量的稀硫酸
答案:C
A点关于x轴对称后坐标变为(1,-1),那么A点的坐标为______.
Applicants _____ first language is not English are required to achieve a satisfactory standard in University-approved Test in English.
A.who
B.in which
C.whose
D.that