库欣综合征的临床表现包括( )
A．向心性肥胖
B．免疫力下降
C．高血压
D．糖尿病
E．性腺功能紊乱
参考答案：A,B,C,D,E
—I'm going to study engineering in Tsinghua University tomorrow. —______.
A．All the best in your study B．All the best with your studyC．All the best in your business D．All the best in your new job
硫代硫酸钠滴定液(0.1000mol/L)的标定应采用
A．碘量法B．直接碘量法C．间接碘量法D．置换碘量法E．剩余碘量法
