_____ he comes, we won't be able to go.
A．Without
B．Unless
C．Except
D．Even
答案：B
行为医学是一门将与健康和疾病有关的（）和（）整合起来，并将这些技术应用于疾病的诊断、治疗、预防和康复的边缘学科。
Mr.Columbus was always ready to help others.________，he was liked by everyone.
A．In conclusion
B．In return
C．In turn
D．In particular
