开展项目工作的规定性文件是( )，并且也是项目经理工作的重要内容之一。A．项目管理

先阅读短文, 在其后空白处写出各单词的正确形式, 单词的第一个字母已给出.

     Pearl Carson was shaken awake at 3:30 am by a forceful pull. King, the family dog, was trying

to pull her out of bed. Then she s___1___ smoke and heard the sound of fire from her parents'

room. Pearl's screams (尖叫) awaked her mother, Fern, and father Howard, who had r___2___

been in a hospital for lung disease. Helping Howard to a first-floor window, Fern told him to climb

out and then ran to her daughter.

     Still inside, King a___3___ at Pearl's window, making screaming sound. When running toward

Pearl's bedroom, Fern realized her husband hadn't yet e___4___. She made her way b___5___

through the smoke and flames, f___6___ King's sound to where Howard lay still on the floor. Fern

helped him get outside. King came out only after the other two were s___7___.

     As day dawned, the Carsons saw that King's paws were badly burned, and his entire body was

burned too. His chain collar (项圈) had gotten so h___8___ that it burned his throat, making it

impossible for him to bark (吠) n___9___. Only after the seven-year-old dog refused food did

they find pieces of wood in his mouth and realized that King, who slept outside, had bitten through

a wood door to w___10___ his family.

一次队列研究的结果，城市和农村男性脑卒中发病率资料如下（表1，表2）：

该研究实施周密，诊断标准经仔细标化，样本有充分代表性，很少失访，差异有统计学意义。请根据该资料判断下述结论（）

A.该研究在抽取样本时，分配年龄方面犯有错误。因为尽管总率显示农村男性较高，但按年龄组分别统计时，城市中各年龄组的率度比农村的高

B.该样本中，因为每个年龄组内城市发病率均高于农村，所以还存在着与城市生活条件有关的增加危险的有关因素（除年龄因素外）

C.这些资料不能进行城市与农村之间率的比较，因为城市的危险人口几乎是农村的2倍

D.该样本中，农村男性发病率较高表明尚存在与农村环境条件有关的增加危险的因素

E.以上答案均不正确

属于锥体外系的结构有()

A．胶状质

B．动眼神经核

C．海马

D．纹状体

E．上丘脑

房地产经纪人在交易合同达成的业务环节中，主要工作是( )，签订交易合同。

A．协调交易价格

B．代理房屋过户手续

C．收取佣金

D．售后服务

特异性免疫治疗