临房早泄，面白神疲，少气乏力，腰酸耳鸣，舌淡脉弱，最宜诊为( )
A．肾阳虚
B．肾气不固
C．肾阴虚
D．肾精不足
参考答案：B
下列关于铁的说法错误的是（ ）
A．生铁和钢都是纯铁
B．铁制品表面喷漆可防止生锈
C．人体缺铁易造成贫血
D．用盐酸清除铁锈时，盐酸不易过量
She gave him the suggestion _____ he _____ English jn a better way. [ ]
A. that; learns
B. whether; learn
C. that; learn
D. why; learned
