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【多选题】
The absorptive cell of small intestinal mucosa( )A.
Its microvilli increase absorptive area
B.
cell coat lining the cell surface contains variety of digestive enzymes
C.
sER in cytoplasm takes part in the formation of chylomicron
D.
all absorbed substances enter blood
E.
intercellular tight junctions insure the selective absorption
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【简答题】Rake接收机存在的问题：『____』、『____』。
【简答题】Consider the circuit below, to establish a drain voltage of 0.1V, the resistance of【图片】should be 【图片】,(【图片】V,【图片】)【图片】
【简答题】Consider the circuit below, to establish a drain voltage of 0.1V, the resistance of【图片】should be 【图片】,(【图片】V,【图片】)【图片】
【多选题】RAKE接收与均衡的区别包括()。
A.
均衡希望多径数量少，时延小
B.
RAKE接收希望可分辨的多径数量多
C.
均衡通过消除ISI来提高SNR
D.
RAKE接收通过分离多径，并合来对抗衰落和多径效应。
【简答题】A Rake receiver can be used to recover the multiple time delayed signals and ( ) them into one signal to provide a time diversity with a lower frequency of deep fades.
【简答题】Is it possible for the receiver to get the few parcels? Yes, as long as the receiver fax Alexander ______.
【简答题】Consider the circuit below, to establish a drain voltage of 0.1V, the resistance of【图片】should be 【图片】,(【图片】V,【图片】)【图片】
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