— We'll do what we can _____ English well this term.

— It's time for you to work hard. [ ]

A. study

B. to study

C. be studied

D. be studying

甲状腺 * * 状腺癌、无淋巴结转移，手术治疗宜采取（）。

A.患侧甲状腺及峡部全切加对侧次全切除术

B.甲状腺局部切除

C.激素治疗

D.手术切除+外放射治疗

E.双侧甲状腺全切除术+放射性碘治疗