茎枝圆柱形,表面黄绿色或金黄色,节膨大,断面不平坦,髓部常偏向一边,叶对生于枝梢的药材是
A.槲寄生B.荆芥C.青蒿D.益母草E.金钱草
参考答案:A
Does he _____ small eyes? Yes, he does.[ ]
A. is
B. have
C. has
D. isn't
下列疾病中最适宜开展二级预防的是()
A.麻疹
B.色盲
C.天花
D.直肠癌
E.心肌梗死