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【简答题】
阅读下面的短文,根据其意思简要回答各题。 'Other countries have a climate, in England we have weather,' Englishmen often say. This really tells us something about England and it is true. From these words we can see Englishmen believe that what happens in England is not the same as what happens in other places. And any foreigners staying in the country for longer than a few days will be sure of the truth of the words. Only in England, it has been said, can one go through four seasons in one day. The day may begin as a gentle morning, an hour or so later black clouds may have appeared from nowhere and it may rain heavily. At noon it may become winter and the temperature may drop by eight or more degrees. And then in the late afternoon the sky will clear up, the sun will begin to shine, and for an hour or two before darkness falls, it will be summer. In England one can go through almost every kind of weather except the best or the worst. Some foreigners seem to think that for ten months of the year the country is covered by fog. It is not true. We never know when the different kinds of weather will occur. Not only do we get a few different kinds of weather in one day, but also we may get winter weather in summer and summer weather in winter. Questions: 1. Who often enjoy talking about weather? _____________________________________________________________________ 2. Is the weather in England the same as that in other countries? _____________________________________________________________________ 3. How many seasons can one actually go through in one day in England? _____________________________________________________________________ 4. What is England covered by for most of the time according to some foreigners? _____________________________________________________________________ 5. What's the main idea of the passage? _____________________________________________________________________
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参考答案:
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【单选题】3吨20千克等于 [     ]
A.
23千克
B.
230
C.
3020千克
【判断题】胴体劈半工艺、分割方式和分割技艺对肉的保水性也有重要影响。劈半工具不良、劈半或分割技术不高,都会不同程度地破坏肌肉结构,增大肉的汁液损失。
A.
正确
B.
错误
【简答题】3 吨20千克=( )吨 3吨20千克=( )千克
【单选题】下列物质中 , 既能与溴水反应又能与三氯化铁发生显色反应的是 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
甲苯
B.
苄醇
C.
. 苯酚
D.
甘油 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
【简答题】对He-Ne激光器输出的632.8nm的红光来说,其中心频率是4.7×10 14 Hz,频率宽度△γ=1.5×10 9 Hz。问Ne所发出的波长范围为多大?由此,你对一般情况下所说的单色光作何理解?
【单选题】波长为632.8nm He-Ne激光器输出为50mW,其输出模式为单横模多纵模,此激光器为非均匀加宽,多普勒线宽为2000MHz,折射率为1,腔长为30cm。若小信号增益系数的最大值为损耗系数的两倍,求此激光器的纵模数。
A.
2
B.
4
C.
7
D.
11
【单选题】下列哪一个是作用是区别满立减与优惠券的关键 ( )
A.
提高客单价
B.
二次销售
C.
全店铺引流
D.
提高关联营销转化率
【单选题】波长为632.8nm He-Ne激光器输出为50mW,其输出模式为单横模多纵模,此激光器为非均匀加宽,多普勒线宽为1.5GHz,折射率为1,腔长为30cm。如果小信号增益系数的最大值为损耗系数的两倍,此激光器的纵模数为()
A.
1
B.
3
C.
5
D.
7
【单选题】在Excel工作表A4单元格中,如要将原来的日期型数据清除并改成能输入数值型数据,正确的操作为______。
A.
单击A4单元格,选择“编辑”菜单下的“清除”下的“格式”
B.
单击A4单元格,选择“编辑”菜单下的“清除”下的“全部”
C.
单击A4单元格,选择“编辑”菜单下的“清除”下的“内容”
D.
单击A4单元格,选择“编辑”菜单下的“删除”
【单选题】Excel 97中,在工作表的单元格里输入中、英文等数据,单元格的数据类型有______。
A.
文本
B.
文本、数字
C.
文本、数字、逻辑值
D.
文本、数字、逻辑值、出错值
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