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【单选题】
关于组织呼吸,正确的是:A.
毛细血管壁有通透性,使气体分子可以自由通过
B.
毛细血管壁厚薄通透性与换气关系不大
C.
组织代谢产生二氧化碳,提高了血液中二氧化碳的分压
D.
组织代谢降低了氧气,降低了血液中氧气的分压
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【简答题】Please listen to Task 8! And then fill the answers into the following blankets!
【单选题】Hearing problems may be alleviated by changes in diet and exercise habits
A.
removed
B.
cured
C.
worsened
D.
relieved
【单选题】Hearing problems may bealleviated by changes in diet and exercise habits．
A.
removed
B.
cured
C.
treated
D.
lessened
【简答题】Directions: Read the following passage. Fill in the numbered blankets by using the information from the passage. Write NO MORE THAN THREE WORDS for each answer. Scientists, doctors and mental health p...
【简答题】Please listen to Task 8, and then fill the answers into the blankets!
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【简答题】Fill in the blanks with a proper form of the words in the blankets.
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