登革热是由下列哪一种蚊传播的病毒性传染病（）
A.中华按蚊
B.伊蚊
C.微小按蚊
D.雷氏按蚊
E.大劣按蚊
参考答案：B
胸痹何证型的发作和加重与情志不遂关系最密切（）
A.心血瘀阻证
B.气滞心胸证
C.痰浊闭阻证
D.寒凝心脉证
E.气阴两虚证
— Did Mary go to the exhibition yesterday?
— Yes, but she _____ at home. [ ]
A. may have stayed
B. must stay
C. should have stayed
D. was staying
