—May I watch TV, Mom?

—I'm afraid you _______.[ ]

A. should not

B. can't

C. must not

D. may not

败血症鼠疫特征性的表现是()

A．多继发于肺鼠疫或腺鼠疫

B．少数为原发性

C．高热、寒战、谵妄或昏迷

D．发生感染性休克

E．皮肤发绀和出血，死亡之后皮肤呈黑色，称黑死病