Despite the rising costs of many products, bus fares in the city of Zhuzhou ______ unchanged.

A．remain

B．are remained

C．are remaining

D．remains

胸腔脏器癌肿的常见转移部位是

A．左锁骨上淋巴结

B．右锁骨上淋巴结

C．腋下淋巴结

D．颈部淋巴结

E．腹股沟淋巴结