下列不是湿邪的性质和致病特点的是（）
A.湿性重浊
B.湿性凝滞
C.湿为阴邪，阻遏气机，损伤阳气
D.湿性黏滞
E.湿性趋下，易袭阴位
参考答案：B
What we have to admit is that never in the past thirty years _______ so greatly as today.[ ]
A. did China change
B. China has changed
C. has China changed
D. China had changed
当土壤温度大于3℃、气温稳定在5℃~7℃时，啤酒花（）开始萌动，标志这啤酒花年生命活动的开始，休眠期的结束，也是啤酒花割芽开始的时间。
A、主根
B、根芽
C、侧芽
D、细毛根
