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【单选题】
下图表示氢随着化合物在生物体内的代谢转移过程,请分析回答(X为代谢中间产物),下列叙述错误的是 [     ]
A.
氢在马铃薯块茎细胞中,经④⑥转移释放出的能量较少,未释放的能量贮存在乳酸或酒精中
B.
若人体内实现③过程转移,则此过程主要发生在骨骼肌和肝细胞中
C.
若洋葱根尖分生区的细胞正在进行细胞分裂,要实现③过程的转移,则主要与高尔基体有关
D.
通过⑦形成的氨基酸属于非必需氨基酸
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【单选题】用紫外光照射某双原子分子,使该分子电离出一个电子并发现该分子的核间距变短了,该电子是
A.
从成键 MO 上电离出的
B.
从非键 MO 上电离出的
C.
从反键 MO 上电离出的
D.
不能断定从哪个轨道上电离出的
【单选题】听力原文:W: Something is definitely bugging you. Why are you walking up and down the hallway? M: It's this presentation I have to give tomorrow. I'm a bit on edge but I'll get over it by then. Q: What do ...
A.
The man's nervous but believes he will be better tomorrow.
B.
The man is begging the woman to let him pass the presentation.
C.
The man's nervous about his presentation because he's unprepared.
D.
The man left his presentation on the window edge but he'll get it tomorrow.
【单选题】听力原文:Why are you walking so quickly? (A) Sue talks very fast. (B) I'm late for a meeting. (C) They enjoy walking. (13)
A.
B.
【单选题】听力原文:W: Something is definitely bugging you.Why are you walking up and down the room? M: It's this presentation I have to give tomorrow.I'm a bit worried but I'll get over it by then. Q: What does the...
A.
He's worried about whether he can finish his presentation tomorrow.
B.
He's nervous but he believes he'll be better tomorrow.
C.
He's nervous about his presentation because he's unprepared.
D.
He'll finish writing his presentation tomorrow.
【单选题】用紫外光照射某双原子分子,使该分子电离出一个电子并发现该分子的核间距变短了,该电子是
A.
成键 MO 上电离出的
B.
从非键 MO 上电离出的
C.
从反键 MO 上电离出的
D.
不能断定从哪个轨道上电离出的
【单选题】-Why are you walking so quickly, Edward? -There __________s talent show(才艺表演) in ten minutes.
A.
will have
B.
will be
C.
is going to have D  is going have
【单选题】-Why are you walking to school? -______ the bus broke down on the way. [     ]
A.
If
B.
Since
C.
Because
D.
Though
【单选题】—Why are you walking to school? —Because my ______ is broken. [     ]
A.
radio
B.
watch
C.
bike
D.
bag
【判断题】接片或者全景拍摄不仅可以用来增加视角,也是创作的一种手段。
A.
正确
B.
错误
【单选题】--- Why were you absent yesterday? --- I caught a cold, _______I had been walking around in the ra
A.
2.--- Why were you absent yesterday? --- I caught a cold, _______I had been walking around in the rain. A.but
B.
so
C.
and
D.
For
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