胆管癌的主要临床表现是()
A.厌食、恶心、呕吐
B.心慌、腹痛、黄疸
C.胸闷、黄疸、寒战高热
D.无痛性黄疸
E.体重明显减轻
参考答案:D
园长应如何成为领导的内行?为什么说园长作为高层管理者的主要职责是‚出主意“用干部”两件事?
What's the temperature today? It's _____ 5℃ _____ 12℃. [ ]
A. both; and
B. from; and
C. from; to
D. both; to