正常精液液化的时间为A．1h内B．1.5h内C．2h内D．2.5h内E．3h内

Read and judge. （阅读短文，判断正“T”误“F”。）

Dear John,

     I saw your name in the newspaper. I  would like to be your penfriend.

     I am twelve years old. I live in Shanghai. I study in Pudong Primary School. We study

Chinese, English, maths, science, art, P. E. and some other subjects. My favourite subjects

are P. E. and maths. I like playing basketball with my friends after school. I like collecting

stamps, too. I have a lot of beautiful stamps. I will finish primary school soon and go to

middle school.

     I'd like to know everything about you. Please write to me soon. My e-mail address is

gaoshan@163.com.

     Best wishes!

                                                                                                                         Yours, 

                                                                                                                        Gao Shan

(      )1. Gao Shan knows John's name from the magazine.  

(      )2. The letter is from John to Gao Shan.   

(      )3. Gao Shan's favourite subjects are maths and P. E.  

(      )4. Gao Shan likes collecting stamps and playing football.  

(      )5. Gao Shan doesn't have an e-mail address.

用there is或there are填空。

1. ________________ a plate on the table.

2. ________________ some dogs near the tree.

3. ________________ a TV in your classroom?  Yes, ________________.

4. ________________ any pandas near your home?  No, ________________.

5. ________________ a chair in the classroom?  Yes, ________________.

女，45岁。右上第一磨牙残冠，拔除术中发生折断

在拔除断根之前应进行的准备工作中，错误的是（）

A.考虑患者全身情况及手术复杂程度

B.仔细检查断根的数目、大小、部位等

C.配置良好的照明并仔细止血

D.应拍摄必要的X线片，准备合适的器械

E.暂不向患者作解释

很多同学在喝完袋装酸奶后，又用力吸一下，会发现奶袋变瘪了，这说叫力可以改变物体的______；这个实验可以证明______是存在的．

什么是新闻编辑的全局意识?为什么特别强调新闻编辑应具有全局意识?