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【单选题】
关于生物体内氨基酸的叙述错误的是 ( )。A.
构成蛋白质的氨基酸分子的结构通式是
B.
人体内氨基酸的分解代谢最终产物是水、二氧化碳和尿素
C.
人体内所有氨基酸均可以互相转化
D.
两分子氨基酸通过脱水缩合可以形成二肽
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反馈参考答案：
举一反三
【简答题】Life is like riding a bicycle. (keep)your balance, you must keep moving.
【简答题】There are always cultural (1) _____________ (different) between different countries around the world. Almost every culture has its own taboos. The breaking of a taboo is usually (2) ____________ (upse...
【单选题】(2013·凉山一模)Life is like riding a bicycle. ________ your balance, you must keep moving.
A.
Keeping
B.
To keep
C.
Keep
D.
Being kept
【单选题】关于手术进行中的无菌原则的叙述,下列哪项不对
A.
不可在手术人员背后传递器械
B.
手术台平面以下为污染区
C.
术中被肠内容物污染的器械必需冲洗后再用
D.
手套破损立即更换
E.
皮肤切开前及缝合之前均要用70％乙醇消毒皮肤一次
【单选题】When trying to remember a word, a name or a telephone number, people find it easier to recall the beginning and end of a lost item than the middle. For example, there is a writer’s name I always ...
A.
The butterfly effect
B.
The greenhouse effect
C.
The bathtub effect
D.
The strength of memory
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