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【单选题】
Cori循环是A.
肌肉内葡萄糖无氧氧化成乳酸,有氧时乳酸重新合成糖原
B.
肌肉内丙酮酸生成丙氨酸,肝脏将丙氨酸重新变成丙酮酸
C.
肌肉内葡萄糖无氧氧化成乳酸,乳酸在肝脏异生成葡萄糖后再释入血中,供外组织
D.
尿素在的肝中合成后,又在肠道由细菌分解成二氧化碳和氨
E.
糖原与1-磷酸葡萄糖之间的相互转变
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【单选题】听力原文：W: May I offer you one of my cigarettes? M: No, thanks. I'm sitting here just because all the seats in the non-smoking re already occupied. Q: Why did the man turn down the cigarette? (18)
A.
He has just finished a cigarette.
B.
He doesn't care for that brand.
C.
He isn't seated in the smoking section.
D.
He doesn't like to smoke.
【单选题】Personally, I think modern education is ________ sitting at a desk and looking at the blackboard.
A.
more than
B.
no more than
C.
less than
D.
no less than
【单选题】听力原文：W: Hey, George! What are you doing sitting in the car all by yourself? M: Oh, I'm just killing time. Traffic was unusually light, so I came a bit early. Q: What do we know about George? (18)
A.
He has too much time to kill.
B.
He met no traffic jam that day.
C.
He wants to take a rest in his car.
D.
His car doesn't work.
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