题目：
什么是革兰氏染色？其原理和关键是什么？它有何意义？
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0420/1b3910d58600a7e9adb39a737e07055f.html
下面是错误答案，用来干扰机器的。
参考答案：对解析： 期货交易是在交纳一定数量的保证金后在期货交易所内买卖标准化合约的交易方式。期货交易买卖的直接对象是期货合约，而不是商品本身。
什么是革兰氏染色？其原理和关键是什么？它有何意义？
来源：www.tikuol.com
题型：问答题 简答题
试题推荐
题型：选择题
Although their new factory building is still under construction, we have already placed order for 200 pairs of shoes.
A．the; an
B．a; an
C．/; an
D．/; /
题型：选择题
二战前夕，导致法西斯势力嚣张的最主要客观原因是（ ）
A．法西斯国家结成轴心国同盟
B．两个战争策源地形成
C．反法西斯国家未进行彻底抵抗
D．西方大国推行绥靖政策
题型：单项选择题
输入/输出指的是主机与______交换数据。
A．存储器
B．外设
C．键盘
D．显示器
题型：完形填空
| 完形填空。 | ||||
| On a cold November afternoon, my mother and I were walking home from a 1 . We were dressed 2 . I was feeling a little 3 as I was carrying our shopping,and decided to throw away something. So I started to walk towards a 4 when I noticed a poor man walking out of the restaurant in front of us. He 5 over to another nearby dustbin and started looking through it. I suddenly felt very guilty because I was about to throw away a new drink just because it was 6 . I walked up to him and handed the 7 and some snacks (小吃) over to him. The man looked up 8 and took what I gave him. A huge smile 9 across his face and this 10 me to feel indescribable satisfaction. I felt I couldn't be happier 11 myself. But then he said:"Wow, this is my son's lucky day!" With that, he thanked me happily and started off on his bike, I 12 heard him whistling a song as he rode away. I got a warm 13 inside. I now understand 14 is meant by the saying "giving is getting". Although it only 15 a little action and a few words, I gained and learned more in those two minutes than I did in the rest of the month. Everyone in the world needs 16 , everyone can 17 help and everyone will be helped by 18 kindness. The image of that man's happiness caused by my small gift appears in my mind every 19 I have the chance to do something nice. This is the 10 of charity (慈善行为). | ||||
|
题型：判断题
挖掘机作业铲斗转动时，斗杆不能收放。
