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【多选题】
Why is coenzyme A important to many metabolic reactions?A.
Coenzyme A has a reactive thiol (—SH) group that is critical to the role of CoA as an acyl carrier in many metabolic reactions.
B.
Acyl groups are covalently linked to the thiol group, forming thioesters.
C.
Because of their relatively high standard free energies of hydrolysis, thioesters have a high acyl group transfer potential—that is, donation of their acyl groups to a variety of acceptor molecules is a favorable reaction.
D.
The acyl group attached to coenzyme A may thus be thought of as “activated” for group transfer.
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A.
a; the
B.
the; the
C.
a; an
D.
the; a
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A.
骨髓增生明显活跃
B.
轻度贫血时红细胞即可 明显出现 小细胞低色素的特征
C.
严重贫血时红细胞可呈环形
D.
红细胞系增生活跃，以 幼稚 红细胞 增生 为主
E.
粒细胞系及巨核细胞系 可 无明显异常
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A.
血象呈正细胞正色素性贫血
B.
血象中以原淋及幼淋为主
C.
骨髓象中原淋胞浆中可见Auer小体
D.
骨髓巨核细胞系受抑
E.
根据形态特征可将急淋分为三型
【判断题】Listen to a passage and complete the following table with what you hear. 补充词汇: ideal adj. 理想的 academic adj. 学业的 calendar n. 日程表 vacation n. 假期 reflection n. 深思 motivate v. 激励;驱使 Different people have ...
A.
正确
B.
错误
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A.
rewarding
B.
rewarded
C.
reward
D.
to reward
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