患者常具有雄心壮志、争强好胜、办事过分认真、容易激动和烦恼()
A.消化性溃疡
B.原发性高血压
C.偏头痛
D.支气管哮喘
E.恶性肿瘤
参考答案:B
— Can you lend me your English-Chinese dictionary?
— I'm sorry I have _____ dictionary. You'd better go to the library. [ ]
A. not such
B. not such a
C. not a such
D. no such a
根据本厂所采用的燃烧器型式,简答如何将燃烧调整到最佳工况。