酶高度的催化效率是因为它能
A. 改变化学反应的平衡点
B. 增加反应的活化能
C. 降低反应的活化能
D. 升高反应温度
E. 催化热力学上允许催化的反应
Which of the following is NOT true about Britain?
A. It used to be a powerful imperial country in the world.
B. It is a relatively wealthy and developed country
C. It plays an active role as a member of European countries.
D. It has very short history.
In British parliament, there are ____ members of parliament.
A. 650
B. 300
C. 325
D. 100
Where are international tennis championships held in Britain?
A. Wembley
B. Wimbledon
C. London
D. Edinburgh
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