简述齿轮传动的转配要求。

男性，55岁。纳差、乏力、消瘦半年就诊。体检：面部暗红色，肝肋下10n1，脾肋下4．5cm，质硬无压痛。化验：Hb195g／L，WBC16．2×10⁹／L，血小板450×10⁹／L，红细胞比容0．60（60％）。骨髓涂片增生明显活跃，粒、红、巨三系均增生，细胞形态无异常。诊断为骨髓增殖性疾病。

案例中患者最可能的诊断是（）

A.慢性粒细胞性白血病

B.原发性骨髓纤维化

C.原发性血小板增多病

D.真性红细胞增多症

E.骨髓增生异常综合征

语法填空（每题1分，共10分）

One day Mary was busy working in her office in London when she received an E-mail from her friend Joan .In Joan’s e-mail, she persuaded Mary 小题1:______( look) for a flat in London for her. As she had 小题2:____ (little) money at her command than before, the flat had to be cheap, but it had to be modern, with elevators, gas lines. It had to be in the 小题3:_______ (east) part of London, with petrol and subway stations nearby. Though Mary found 小题4:_____difficult to find such a flat, she still went from one block to another, looking for a flat 小题5:_______would meet Joan’s requirements. Having tried too many times, Mary came up 小题6:______her boss and politely asked him 小题7:____advice. It was the first time that she 小题8:___________ (talk) with his boss about her personal problems. It happened that the boss just had such a flat for rent, so they quickly reached 小题9:____agreement. But to her surprise, when she e-mailed Joan, telling her the good news, Joan said that she had changed 小题10:_____ mind--- she was not returning to London.

债券投资者要进入证券交易所参与交易，必须遵循的交易程序是______

A．开户

B．委托

C．成交

D．交割

E．过户

患者晨起后突然呕血不止，面色苍白，四肢厥冷，脉微欲绝。其证型是（）。

A.气随血脱

B.气虚出血

C.气血两虚

D.瘀血出血

E.气滞血瘀

警容风纪，指人民警察在着装、仪容、举止、礼节等方面的行为规范。( )