心绞痛的缓解期的治疗（）
A.硝酸酯类制剂
B.β-受体阻滞剂
C.钙通道阻滞剂
D.中药治疗
参考答案：A, B, C, D
药材淫羊藿的原植物有
A．淫羊藿
B．箭叶淫羊藿
C．柔毛淫羊藿
D．巫山淫羊藿
E．朝鲜淫羊藿
—I'd like ________ the after-school club, but I'm not sure what I should do.
—What do you like ________?[ ]
A. to join, do
B. to join, doing
C. joining, to do
D. joining, doing
