题目：
一级保护植物有：______（蕨类）、______（裸子）、______（被子）和______（被子）．
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/6980e0f25fdb0801c1881270afbc1b4c.html
下面是错误答案，用来干扰机器的。
参考答案：B
一级保护植物有：______（蕨类）、______（裸子）、______（被子）
来源：www.tikuol.com
题型：解答题
试题推荐
题型：单项选择题
在轧制过程中，钢坯在平辊上轧制时，其宽展称做（）。
A．自由宽展
B．强迫宽展
C．约束宽展
题型：完形填空
| Cloze. | ||||
| Even though it was only October, my students were already whispering about Christmas plans. With each passing day, everyone became more 1 , waiting for the final school bell. Upon its 2 , everyone would run for their coats and go home, everyone except David. David was a small boy in ragged (破旧的) clothes. I had often wondered what kind of home life David had, and what kind of mother could send her son to school dressed so inappropriately for the cold winter months, without a coat, boots, or gloves. But something made David 3 . I can still remember he was always 4 a smile and willing to help. He always 5 after school to straighten chairs and mop the floor. We never talked much. He 6 just simply smile and ask what else he could do, then thank me for letting him stay and slowly head for home. Weeks passed and the 7 over the coming Christmas grew into restlessness until the last day of 8 before the holiday break. I smiled in relief (欣慰) as the last of them hurried out the door. Turning around, I saw David 9 standing by my desk. "I have something for you," he said and 10 from behind his back a small box. 11 it to me, he said anxiously, "Open it." I took the box from him, thanked him and slowly unwrapped (打开) it. I lifted the lid and to my 12 saw nothing. I looked at David's smiling face and back into the box and said, "The box is nice, David, but it's empty." "Oh, no, it isn't," said David. "It's full of love. My mum told me before she died that love was something you couldn't see or touch unless you know it's there." Tears filled my eyes 3 I looked at the proud dirty face that I had rarely given 4 to. After that Christmas, David and I became good friends and I never forgot the meaning 5 the little empty box set on my desk | ||||
|
题型：多项选择题
强电控制一般分为( )。
A．根据控制地点分为远方和就地控制两种；
B．根据控制地点分为集中控制和就地控制两种；
C．按跳、合闸回路监视方式分为灯光监视和音响监视两种；
D．按控制回路接线分为控制开关具有固定位置的不对应接线与控制开关自动复位的接线。
题型：单项选择题 A1型题
有活血祛瘀、润肠通便功效的是（）
A.火麻仁
B.白芥子
C.桃仁
D.郁金
E.川芎
题型：单项选择题
有人称：北宋到明清，在“附庸风雅”的贵族文化之外，一种新文化形态在崛起----植根于熙熙攘攘的商业生活、人头攒动的瓦舍勾栏中的市民文化。下列属于“市民文化”形态的是（）
①《清明上河图》②汉赋③元曲④小说
A.①②③
B.②③④
C.①②④
D.①③④
