Which of the following is not a landmark in London?
A. The Tower of London
B. Stonehenge
C. Buckingham Palace
D. Westminster Abbey
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From about the middle of the 5th century, three Germanic tribes came to England and formed the basis of the modern British people. Which one is not included?
A. the Angles, Saxons and Jutes
B. Saxons and Jutes
Celts
D. Jutes
The full name of UK is _____ .
A. The Kingdom of Great Britain and Northern Ireland
B. The United Kingdom of Great Britain and Ireland
C. The United Kingdom of Great Britain
D. The United Kingdom of Great Britain and Northern Ireland
在500℃时，MgCO3(s)与其分解产物MgO(s)、CO2(g)组成的平衡系统中（ ）
A. C=2、P=3、F=1
B. C=2、P=3、F=0
C=3、P=2、F=0
D. C=3、P=3、F=1
关于临界状态的的描述，不正确的是（ ）
A. 在临界状态气、液之间没有区别
B. 临界点处等温线的一阶、二阶偏导数均为零
C. 临界温度越低的物质，其气体越易液化
D. 临界温度越高的物质，其气体越易液化
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