酸价的测定选用（）作为标准溶液最好。
A．氢氧化钠-水溶液
B．氢氧化钠-乙醇溶液
C．氢氧化钾-乙醇溶液
D．氢氧化钾-水溶液
参考答案：C
– James didn’t ____ last night, did he?
– No. He ____. We had changed our plan.
A．turn away; shouldn’t have come
B．turn up; needn’t have come
C．turn up; didn’t need to come
D．turn away; doesn’t need to come
河南巩义宋陵不包括（）的陵墓。
A.宋真宗
B.宋仁宗
C.宋徽宗
D.宋钦宗
