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【单选题】
D、d和T、t是分别位对同源染色体上的两对等位基因，在不同情况下，下列叙述正确的是 [     ]
A.
DDTT和ddtt杂交，F 2 中具有性状且能稳定遗传的个体比例是1/4
B.
基因型为Ddtt的植株与基因型为ddTt的植株杂交，后代只有一种表现型
C.
基因型为DdTt的个体，如果产生有DD的配子类型，则可能发生染色体数目变异
D.
后代的表现型数量比接近于1：1：1：1，则两个亲本的基因型一定为DdTt和ddtt
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【单选题】Which of the following statements is in agreement with McGregor's concepts concerning Theory X and Theory Y managers? A . Theory X managers view subordinates as being lazy, irresponsible, and resistan...
B.
. Theory Y managers view subordinates as being imaginative, creative, and willing to accept responsibility
C.
. Theory X managers tend to be autocratic whereas Theory Y managers are more likely to delegate responsibility
D.
. A and B.
E.
. All of the above
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【单选题】( )的情况下,函数在调用前必须说明。
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定义函数时加有类型说明，并且定义在后
B.
定义函数时加有类型说明，并且定义在前
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具有 int 型返回值
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正确
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【判断题】递推是从问题的最终目标出发，逐渐将复杂问题化为简单问题，最终求得问题。
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正确
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【单选题】Mariah is the manager in a restaurant. According to Douglas McGregor's Theory X, which of the following is a behavior she would most likely exhibit?
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She would empower her subordinates.
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【单选题】141 Which of the following statements is in agreement with McGregor's concepts concerning Theory X and Theory Y managers?
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Theory X managers tend to be autocratic whereas Theory Y managers are more likely to delegate responsibility
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【单选题】23 Which of the following statements is in agreement with McGregor's concepts concerning Theory X and Theory Y managers?
B.
Theory X managers view subordinates as being lazy, irresponsible, and resistant to change B. Theory Y managers view subordinates as being imaginative, creative, and willing to accept responsibility
C.
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【单选题】Mariah is the manager in a restaurant. According to Douglas McGregor's Theory X, which of the following is a behavior she would most likely exhibit?
A.
She would empower her subordinates.
B.
She would trust her employees to use discretion in most matters.
C.
She would strictly control all the details of any project she is managing.
D.
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【单选题】23 Which of the following statements is in agreement with McGregor's concepts concerning Theory X and Theory Y managers?
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Theory X managers view subordinates as being lazy, irresponsible, and resistant to change B. Theory Y managers view subordinates as being imaginative, creative, and willing to accept responsibility
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