按照压缩编码的原理可以分为3种编码方法，以下错误的是______。A．熵编码 B．源

有机磷农药中毒的发病机理是（）。

A．迷走神经过度兴奋

B．交感神经过度兴奋

C．抑制胆碱酯酶

D．碳氧血红蛋白蓄积

E．高铁血红蛋白蓄积

第二节完形填空（共20小题；每小题1.5分，满分30分）

　　阅读下面短文，从短文后各题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

　　John Blanchard was at Grand Central Station,looking for the girl whose heart he knew,but whose face he didn't,the girl with the 36 .

　　His interest in her had begun 13 months before in a Florida 37 .He was reading a book there and was attracted by the 38 on the margins left by a reader named Miss Hollis Maynell.He 39 to find her address and wrote her a letter 40 himself.The next day he was shipped overseas for 41 in the army in World War Ⅱ.

　　During the next 13 months the two grew to know each other throught the 42 .When he returned,they decided their first 43 -7 pm at Grand Gentral Station. "Youll 44 me," she wrote,"by the red rose I'll be 45 on my coat."

　　A young girl in a green suit was coming 46 Blanchard.She was so beautiful that he started fixing his eyes upon her,entirely 47 to notice that she was not wearing a rose.Just then,he saw Hollis Maynell,who was 48 just behind the girl.She was a woman well past 40,with 49 hair under a worn hat.

　　Blanchard felt 50 .But he didn't hesitate.He said to 51 ,"I'm Lieutenant(中尉) John Blanchard,and you must be Miss Maynell.I am so glad you could meet me; may I take you to 52 ?"

　　"I don't 53 what this is about,son," she said,"but the young lady 54 asked me to wear this rose on my coat. And she said if you were to ask me out to dinner,I should tell you that she is 55 you in the big restaurant across the street!"

　　You can hardly imagine how happy Lieutenant John Blanchard felt at the moment!　

　　36.A.book B.hat C.rose D.letter

　　37.A.library B.restaurant C.post office D.station

　　38.A.trails B.notes C.signs D.marks

　　39.A.attempted B.stopped C.intended D.managed

　　40.A.introducing B.displaying C.acknowledging D.claiming

　　41.A.business B.work C.service D.research

　　42.A.ship B.mail C.line D.telegraphy

　　43.A.greeting B.interview C.meeting D.talk

　　44.A.memorize B.impress C.run into D.recognize

　　45.A.putting B.carrying C.fixing D.wearing

　　46.A.toward B.over C.from D.off

　　47.A.refusing B.forgetting C.stopping D.managing

　　48.A.standing B.wandering C.chasing D.hurrying

　　49.A.lighening B.darkening C.graying D.thickning

　　50.A.excited B.shy C.embarrassed D.disappointed

　　51.A.the girl B.the woman C.himself D.the passer - by

　　52.A.dinner B.my house C.the hotel D.the train

　　53.A.guess B.believe C.know D.like

　　54.A.under a worn hat B.in the green suit C.with gray hair D.standing behind

　　55.A.preparing for B.looking for C.teating D.waiting for

机床工作台在低速运动时，常会出现爬行现象，这是一种（）。

A.自由振动

B.强迫振动

C.自激振动

（）不能用大肠杆菌表达系统来生产。

A.胰岛素

B.干扰素

C.EPO

D.赛若金

集贸市场和各类专业市场的清扫保洁，由产权单位或者（）负责。

A.专业公司

B.所有者

C.使用者

D.经营者