下图是制作洋葱鳞片叶表皮细胞装片的几个步骤,请回答: (1)操作步骤的正确顺序

题型:实验题

问题:

下图是制作洋葱鳞片叶表皮细胞装片的几个步骤,请回答:

(1)操作步骤的正确顺序是                            

(2)步骤1这样做的目的是                                       

考点:观察实验:观察洋葱鳞片叶表皮细胞植物细胞结构和功能
题型:实验题

We know good manners are important. Today I am going to tell you something about manners in different countries. I think you already know that people in different countries usually have different ways of doing things. ①Something that is rude in one country may be quite         in    

      . ②For example, in Britain you mustn’t raise your bowl to your mouth when you are having soup. That is considered bad manners in Britain. But in Japan you needn’t worry about making noise when you drink something. It shows that you are enjoying it. In Britain we try not to put our hands on the table at all during a meal. ③Guests are expected to keep their hands on the table during a meal in Mexico. In Arabic countries, we must be careful with our hands. You see, in Arabic countries you mustn’t eat with your left hand. This is considered to be very impolite. So, what should you do if you visit a foreign country? Well, you needn’t worry. You can ask the native people there to help you and you can just watch carefully and try to do what they do.

小题1:将①处句子补充完整,每空一词。

Something that is rude in one country may be quite           in          .

小题2:翻译②处句子。

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小题3:对③处划线部分提问。

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题型:实验题

警察是具有( )性质的维护社会秩序,惩治犯罪、保卫国家安全的国家行政力量。

A.阶级斗争
B.治安
C.暴力
D.武装

题型:实验题

GIS是()数据和()数据的综合体

题型:实验题

鼓励患者进行主动运动的时机为

A.肌力恢复至1级
B.肌力恢复至2级
C.肌力恢复至3级
D.肌力恢复至4级
E.肌力恢复至5级

题型:实验题

颅咽管瘤的MRI表现,不正确的是()。

A.大多位于鞍上区

B.T1WI可以是高信号,与肿瘤含胆固醇或正铁血红蛋白有关

C.T2WI以高信号多见

D.一般无脑水肿

E.肿瘤血供丰富,可以见到血管流空的低信号

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