铬酸钾指示剂法测定CL-含量时，若溶液显碱性，滴定前需加入酚酞指示剂，用稀（）调pH值。
A.硝酸
B.盐酸
C.氢氧化钠
D.硝酸钠
参考答案：A
据《灵枢·百病始生》，哪一项是伤脾而病起于阴的病因（）
A.形寒饮冷
B.醉以入房，汗出当风
C.用力过度，汗出浴
D.愁忧思虑
E.寒温不节，饮食失宜
— There were already five people in the car but they managed to take me as well .
— It ____ a comfortable journey .
A．can''t be
B．shouldn''t be
C．mustn''t have been
D．couldn''t have been
