甲、乙、丙三人在同一办公室工作．办公室只有一部电话机，设经过该机打进的电话是打给

在一幅地图上，5厘米长的线段表示8千米的实际距离，这幅地图的比例尺是______．

根据句意完成句子  (共20空 ，记10分)

1. Without a good knowledge of vocabulary, many a student ______ _______ _______ English. (学英语有困难)

2. Parents _______ _______ _______ _______ _______ a qualified teacher was to have a profound effect on the children in their life.  (想当然)

3. You’d better ______ ____ _______ ____ (留意)the advertisement since you are looking for a job.

4. It is likely that some students during the free periods _______ _______ _______ _______ all the time.    (假装学习)

5. ________ ________ ________ ________ the number of the students appreciates reading China Daily will be on the increase. (有可能)

下列哪个选项的java源文件代码片段是不正确的

A．package testpackage；  public class Test{ }

B．import javi* ；  package testpackage；  public class Test{ }

C．import javi*；   class Person{ }  public class Test{ }

D．import javi*；  import javaw*；  public class Test{ }

红蝴蝶疮的特征

A． * * 口常有精液溢出
B．排尿困难、尿潴留
C．阴囊肿大偏坠，但无红热，透光试验(+)
D．阴茎背侧触及硬结或索状斑块
E．射精时精液呈淡红色或棕色

磁感应强度又叫磁通密度。