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【多选题】
关于 半导体中 光生载流子的分离说法错误的是A.
光生载流子在半导体空间电荷层作用下分离
B.
光生载流子中的电子和空穴是出现的
C.
光生载流子不及时分离可以在任意能带复合
D.
下光生载流子无法在半导体自建电场作用下分离
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举一反三
【简答题】通过____ 键可以实现大小字母之间的切换。
【单选题】If your co-worker makes some mistakes, you should __________________. .
A.
tell on him
B.
tell the other co-workers
C.
tell the manager
D.
talk to him personally about it
【单选题】In astronomical terms, a cluster ______.
A.
consists of galaxies
B.
makes up superclusters
C.
consists of groups
D.
makes up a group
【简答题】I think whoever makes contributions to the company than the others should get income. A.greater a highest B. moregreater a higher C.greater the highest D. moregreater the higher
【简答题】Truffle Co makes high quality, hand-made chocolate truffles which it sells to a local retailer. All chocolates are made in batches of 16, to fit the standard boxes supplied by the retailer. The standa...
【单选题】The______ of reliable data makes it impossible to reach a prompt decision.
A.
dependence
B.
consequence
C.
presence
D.
absence
【简答题】An yst makes the appropriate adjustments to the financial statements of retail companies that are lessees using a substantial number of operating leases.Compared to ratios computed from the unadju...
【简答题】Lock Co makes a single product – a lock – and uses marginal costing. The standard cost card for one unit is as follows: A junior member of the accounts team produced the following variance statement f...
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