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【单选题】
胃大部分切除后出现巨幼红细胞性贫血是由于下列哪种物质吸收障碍所致?A.
蛋白质
B.
叶酸
C.
维生素B12
D.
铁
E.
脂肪
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【单选题】—Look! What's the driver doing? —He_____ the car by the road. [ ]
A.
must repair
B.
may repair
C.
must be repairing
D.
must repairing
【简答题】—Did you see who the driver was? —No, so quickly that I couldn’t take a good look at his face. A. the car speeds by B. the car sped by C. does the car speed by D. did the car ...
【简答题】1mol软脂酸完全氧化成CO 2 和H 2 O，可生成多少摩尔ATP?若1mol软脂酸完全氧化时的△G' 0 =9791kJ，试求软脂酸完全氧化分解的能量转化效率。
【简答题】求输入阻抗。 电路如图,输入阻抗Z=( )欧姆。
【简答题】已知二端口网络电路如图所示， ，R L =900Ω，R S =200Ω，试求输入阻抗Z i 和输出阻抗Z o 。
【单选题】-- Did you see who the driver was? --No, so quickly_____ that I couldn’t get a good look at his face. A does the car speed by B. the car speed by C. did the car speed by D. the car speeds by
A.
1
B.
2
C.
3
D.
4
【简答题】A．By breaking into the car. B．By gaining access to the unlocked car. C．By copying the key of the car. D．By stealing the key from the owner's house.
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