关节肿胀，僵硬，疼痛不移，肌肤紫暗或瘀斑等为（）
A.痰
B.瘀
C.湿
D.寒
E.热
参考答案：B
She is not used to _______ like that.
A．speak to
B．spoke to
C．speaking to
D．being spoken to
从土壤中分离获得某种微生物的步骤是
①土壤取样 ②梯度稀释 ③选择培养 ④菌悬液涂布平板 ⑤挑选出单个菌落 [ ]
A．①②③④⑤
B．①③②④⑤
C．①②④③⑤
D．①④②③⑤
