What is said about the London Case Pavilion?
A. It is a zero-carbon restaurant.
B. It is in the city of London.
C. It is the best eating place.
D. It emits no carbon.
查看答案
What did Charles see everywhere at the Expo site?
An old way of life.
B. Different cultures.
C. Different shapes.
D. Green life.
What can we do to better our city, according to Christine?
A. Not use chopsticks and dishes.
B. Live a low-carbon life.
C. Eat in the restaurant.
D. Not use lights.
What are they going to do?
A. Have lunch.
B. Turn off the lights.
C. Visit the Shanghai Expo.
D. Move on to the next pavilion.
测定水样PH值时，应适当进行搅拌，以使溶液均匀并达到电化学平衡，而在读数时，则应（）以使读数稳定。
A. 不断搅动，充分接触
B. 停止搅动，静置片刻
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