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【简答题】
肺换气之后,O2 进入血液。血液运输 O2 有两种形式,即()和()。前者是后者的前提,而只有通过与血红蛋白化学结合,大大提高氧气的运输能力,二者之间密切联系,缺一不可。
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反馈参考答案：
举一反三
【简答题】通用定时器 T1O要实现8S定时,需设置参数为 。
【单选题】The two sisters are forced to play the piano. In fact,neither of them ______ to play it.
A.
like
B.
liked
C.
likes
D.
liking
【简答题】重视启发教学，提出“助产术”的人是苏格拉底。()
【简答题】The two sisters are remarkably like in appearance.
【单选题】The two sisters are _____ in many ways, not only in appearance but also in temperament.
A.
like
B.
likely
C.
alike
D.
lively
【单选题】The two sisters are very different in character. One is quiet but _______ is outgoing.
A.
another
B.
others
C.
the others
D.
the other
【单选题】The two sisters are so alike it’s difficult to _______one from the other.
A.
determine
B.
discriminate
C.
distinguish
D.
contrast
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