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【单选题】
In gas exchange, carbon dioxide and oxygen move in and out of the alveoli through . Which of the following is true about this process?A.
Gas exchange stimulates the production of ATP
B.
Carbon dioxide is largely carried by the macrophages.
C.
Oxygen typically gets trapped in the alveoli.
D.
There is no expenditure of energy.
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【单选题】Task 24 Borrowing to start a business is not easy. Getting a bank loan, particularly for a new small business, is like going through the eye of a needle. Banks favor established business people with a...
A.
the ability to borrow from a bank
B.
the importance of borrowing money
C.
the start-up of a new small business
D.
the difficulty of getting a bank loan
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