不是感染性发热病因的是()A.血清病 B.肺炎支原体 C.真菌 D.细菌 E.立克次

阅读理解。

        The celebration of Thanksgiving will be not perfect without turkey. It gets its name from the turk

turk sounds it makes when frightened. Turkey was at one time being considered as the national symbol

(象征) of America. Benjamin Franklin felt that turkey was the, right choice because it was a good runner

and had good eye. 

       It is said that pilgrims (清教徒) had a large meal with cooked turkey after their first harvest in the

year 1621.It continued for three days and included ninety Indians.    

      Queen Elizabeth of 16th century England ate roast goose (烤鹅) during a harvest festival. From

then on, goose became a favorite bird at harvest time in England. However,when the pilgrims arrived in

America, they replaced(用......替换) the roast goose with roast turkey as it was easier to find.

      Today,every house cooks turkey as the main dish during the celebration. The festival completes

with the ' Turkey Song' .

1. Why did Benjamin Franklin feel that turkey could be considered as the national symbol of America?

__________________________________

2. How many Indians were there during the large meal served by the pilgrims in 1621? 

3. What does the underlined word "it" refer to in the third paragraph?

4. What's the best title of this passage?

肝硬化门脉高压，可出现（）

A．扑翼样震颤

B．出血倾向

C．皮肤色素沉着

D．脾脏肿大

E．蜘蛛痣

上海证券交易所在开业初期，采用T+0交收制。

在北半球可航半圆的特点和可行的避台操纵法是：（）

Ⅰ风向左转Ⅱ左首顶风全速驶离Ⅲ右首受风顶风滞航Ⅳ右尾受风驶离

A.Ⅰ、Ⅳ

B.Ⅰ、Ⅲ

C.Ⅰ、Ⅲ、Ⅳ

D.Ⅱ～Ⅳ

信息分类应选择分类对象最稳定的本质属性作为信息分类的基础和标准。这是对投资建设项目信息进行分类应遵循的( )原则。

A．稳定性
B．兼容性
C．可扩展性
D．实用性