皮皮学，免费搜题
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【单选题】
肠梗阻的共同临床表现不包括
A.
腹痛
B.
休克
C.
呕吐
D.
腹胀
E.
停止排便排气
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举一反三
【单选题】下列关于嘌呤核苷酸从头合成的叙述，正确的是(    )
A.
嘌呤环的氮原子均来自氨基酸的α-氨基  
B.
合成过程中不会产生自由嘌呤碱  
C.
氨基甲酰磷酸为嘌呤环提供氨甲酰基  
D.
由IMP合成AMP和GMP均由ATP供能  
E.
次黄嘌呤鸟嘌呤磷酸核糖转移酶催化IMP转变成GMP
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【判断题】银行保函要求的单据实际上是受益人出具的关于委托人违约的声明或证明。可适用于各种经济交易中,为契约的一方向另一方提供担保。
A.
正确
B.
错误
查看完整题目与答案
【单选题】高渗性脱水病人早期一般存在以下表现
A.
皮肤弹性差
B.
口渴
C.
脉搏细速
D.
血压下降
E.
静脉塌陷
查看完整题目与答案
【单选题】There are certain ________ when you must interrupt people who are in the middle of doing something. [     ]
A.
conditions
B.
situations
C.
 occasions
D.
environment
查看完整题目与答案
【简答题】Passage One Questions 46 to 50 are based on the following passage. Nobody really knows how big Lagos is. What’s indisputable is that it’s growing very quic Between now and 2050, the populatio...
查看完整题目与答案
【单选题】下列关于嘌呤核苷酸从头合成的叙述哪项是正确的?()
A.
由IMP合成AMP和GMP均由ATP供能
B.
嘌呤环的氮原子均来自氨基酸的α氨基
C.
合成过程中不会产生自由嘌呤碱
D.
氨基甲酰磷酸为嘌呤环提供氨甲酰基
查看完整题目与答案
【简答题】嘌呤环从头合成过程中( )提供核苷酸的磷酸核糖部分,在其上再完成嘌呤环的装配
查看完整题目与答案
【单选题】There are certain ______ when you have to interrupt people who are in the middle of doing something.
A.
chances
B.
situations
C.
occasions
D.
opportunities
查看完整题目与答案
【简答题】Questions 1 to 5 are based on the following passage. Nobody really knows how big Lagos is. What's indisputable is that it's growing very quickly. Between now and 2050, the population of Africa c...
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【简答题】Nobody really knows how big Lagos is. What's indisputable is that it's growing very quickly. Between now and 2050, the population of Africa could triple. Yet cities in sub-Saharan Africa are not...
查看完整题目与答案
相关题目：
【单选题】下列关于嘌呤核苷酸从头合成的叙述，正确的是(    )
A.
嘌呤环的氮原子均来自氨基酸的α-氨基  
B.
合成过程中不会产生自由嘌呤碱  
C.
氨基甲酰磷酸为嘌呤环提供氨甲酰基  
D.
由IMP合成AMP和GMP均由ATP供能  
E.
次黄嘌呤鸟嘌呤磷酸核糖转移酶催化IMP转变成GMP
查看完整题目与答案
【判断题】银行保函要求的单据实际上是受益人出具的关于委托人违约的声明或证明。可适用于各种经济交易中,为契约的一方向另一方提供担保。
A.
正确
B.
错误
查看完整题目与答案
【单选题】高渗性脱水病人早期一般存在以下表现
A.
皮肤弹性差
B.
口渴
C.
脉搏细速
D.
血压下降
E.
静脉塌陷
查看完整题目与答案
【单选题】There are certain ________ when you must interrupt people who are in the middle of doing something. [     ]
A.
conditions
B.
situations
C.
 occasions
D.
environment
查看完整题目与答案
【简答题】Passage One Questions 46 to 50 are based on the following passage. Nobody really knows how big Lagos is. What’s indisputable is that it’s growing very quic Between now and 2050, the populatio...
查看完整题目与答案
【单选题】下列关于嘌呤核苷酸从头合成的叙述哪项是正确的?()
A.
由IMP合成AMP和GMP均由ATP供能
B.
嘌呤环的氮原子均来自氨基酸的α氨基
C.
合成过程中不会产生自由嘌呤碱
D.
氨基甲酰磷酸为嘌呤环提供氨甲酰基
查看完整题目与答案
【简答题】嘌呤环从头合成过程中( )提供核苷酸的磷酸核糖部分,在其上再完成嘌呤环的装配
查看完整题目与答案
【单选题】There are certain ______ when you have to interrupt people who are in the middle of doing something.
A.
chances
B.
situations
C.
occasions
D.
opportunities
查看完整题目与答案
【简答题】Questions 1 to 5 are based on the following passage. Nobody really knows how big Lagos is. What's indisputable is that it's growing very quickly. Between now and 2050, the population of Africa c...
查看完整题目与答案
【简答题】Nobody really knows how big Lagos is. What's indisputable is that it's growing very quickly. Between now and 2050, the population of Africa could triple. Yet cities in sub-Saharan Africa are not...
查看完整题目与答案