问题：
[多选] 下列能排酸保碱，维持机体酸碱平衡的有（ ）
下列能排酸保碱，维持机体酸碱平衡的有（ ）
问题：
[单选] Every year just after Christmas the January Sales start．All the shops reduce their pricesand f
Every year just after Christmas the January Sales start．All the shops reduce their pricesand for two weeks，they are full of people looking for bargains．My husband and I do not nor-mally go to the sa
问题：
[单选,材料题] The husband and wife in the story__________．
The husband and wife in the story__________．
问题：
[单选,材料题] The phrase“split up”in tlle second paragraph means“__________”．
The phrase“split up”in tlle second paragraph means“__________”．
问题：
[单选] Sequoyah was a young Cherokee Indian．son of a white trader and an Indian Squaw(北美印第安女人)．At an
Sequoyah was a young Cherokee Indian．son of a white trader and an Indian Squaw(北美印第安女人)．At an early age，he became fascinated by“tile talking leaf”，an expression thathe used to describe the white ma
问题：
[单选,材料题] What prompted Sequoyah to develop his alphabet?
What prompted Sequoyah to develop his alphabet?
问题：
[单选,材料题] How would you describe Sequoyah?
How would you describe Sequoyah?
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