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问题 选择题

某有机物的结构简式如下：

,1 mol此物质与浓溴水反应，最多耗Br2 m mol，在一定条件，1 mol此物质与NaOH反应，最多消耗NaOH n mol。则m、n分别为(   )

A．3，1

B．3，3

C．3，4

D．4，4

答案

答案：C

要注意此有机物结构特征：前面部分为芳香环，后面部分为脂肪环。该物质与浓溴水反应：

与NaOH反应：

单项选择题

The Intergovernmental Panel on Climate Change (IPCC) was set up in 1988 to assess information on climate change and its impact. Its Third Assessment Report predicts global temperature rises by 2100 of between 1.4°C and 5.8°C. Although the issue of the changing climate is very complex and some changes are uncertain, temperature rises are expected to affect countries throughout the world and have a knock-on effect with sea-level rises.Scientists have argued about whether temperature rises are due to human activities or due to natural changes in our environment. The IPCC announced in 2001 that "most of the warming observed over the last 50 years is likely to be attributable to human activities". This was a more forceful statement than in 1996 when the Second Assessment Report stated that there was a "discernible human influence on the climate" which was the first time they had concluded such a link. Many experts believe the faster the climate changes, the greater the risk will be.Key points of the projections for climate change globally include that by the second half of the 21st century, wintertime rainfall in the northern mid to high latitudes and Antarctica will rise, that meanwhile Australia, Central America and southern Africa are likely to see decreases in autumn precipitation, that some land areas in the tropics will see more rainfall, and that there will generally be more hot days over land areas.

According to the author, climate researchers________.

A．are quite sure about why it’s getting hotter and hotter

B．declared that we humans are the cause why it’s getting hotter

C．have discussed the possible causes why it’s hotter

D．have claimed that changes in nature are the roots of hot days
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多项选择题

以下说法正确的是( )

A．公司股东滥用股东权利给公司造成损失的，股东应当对公司承担赔偿责任

B．公司股东滥用股东权利给其他股东造成损失的，受损害的股东无权要求股东直接承担赔偿责任

C．公司的实际控制人利用关联关系损害公司利益，给公司造成损失的，公司有权提起诉讼要求实际控制人承担赔偿责任

D．董事违反公司章程损害公司股东利益的，股东有权直接提起诉讼要求董事承担赔偿责任
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