问题 多项选择题

对讲系统所用的线缆主要是()

A.8芯屏蔽线

B.4芯屏蔽线

C.6芯屏蔽线

D.光缆

E.同轴电缆

答案

参考答案:A, B, C, D, E

写句子

句子加工厂(按要求写句子)     

1.把下面的句子改为“把”字句和“被”字句。

     饥饿和疲劳压倒了我。

    “把”字句:                                                                                                                           

    “被”字句:                                                                                                                            

2.把直接叙述改成转述。 

     他对我说:“我和爸爸每晚都要学习到十点左右才休息。”  

                                                                                                                                                   

3.缩句。 

     浑浊的泉水从凋落的树叶和青草下面慢慢地往外冒。

                                                                                                                                                   

4.扩句。 

     孩子们坐在石板上。

                                                                                                                                                   

单项选择题