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【单选题】
关于CO2解离曲线的叙述，下列哪项是错误的A.
表示 Hb 上 CO 2 结合的量与 PCO 2 的关系
B.
血液中二氧化碳含量随二氧化碳分压上升而增加，几乎成线性关系
C.
没有饱和点
D.
PO 2 的变化可使之移位
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举一反三
【单选题】he problem will be fully discussed at the meeting ______the next day.
A.
hold
B.
homing
C.
to be held
D.
held
【简答题】A．He has some knowledge of the law. B．He had the same problem. C．He knows the owner. D．He can bring a lawsuit against the owner.
【简答题】A．He can't afford to buy the ticket. B．He needs a break from the math problem. C．He doesn't want to go to the opera. D．He'll meet the woman when he has finished the math problem.
【简答题】Though he might try ,he couldn't solve the problem.
【单选题】—I can’t help you with he problem, for I with my homework. —Thank you all the same.
A.
am occupying
B.
occupy
C.
am occupied
D.
was occupied
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