It is strongly suggested that measures________factories to pour waste into rivers by the government.  [ ]

A. be taken to prevent

B. be taken to forbid

C. are taken to prevent

D. are taken to forbid

女，30岁。左上颈部肿物1年，有反复消长史，感冒时易增大，触诊囊性感明显，穿刺液为透明、淡黄色水样清亮液体。该患者最有可能的诊断为

A．舌下腺囊肿口外型

B．甲状舌管囊肿

C．下颌下腺囊肿

D．第二腮裂囊肿

E．囊性水瘤