One of the things we have to do to prevent a pandemic is to make sure people understand and know what they can do to minimize the commotion.

A．command

B．collusion

C．turmoil

D．tutelage

肿瘤转移途径包括（）。

A.血道转移、种植性转移、浸润转移

B.血道转移、淋巴道转移、浆膜腔转移

C.种植性转移、血道转移、淋巴道转移

D.淋巴道转移、种植性转移、浸润转移

E.血道转移、浸润转移、浆膜腔转移