题目内容

胃溃疡最常见的合并症是

A. 出血
B. 幽门梗阻
C. 癌变
D. 穿孔

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混合性血栓可见于

A. 静脉血栓体部
B. 静脉血栓头部
C. 风湿性心内膜炎
D. 弥漫性血管内凝血

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If a child is bitten or startled several times by a dog, he may learn to associate furry (有毛皮的) animals with pain or startle and thus develop a fear of furry animals. This is a typical example of learning through ______.

A. classical conditioning
B. operant conditioning
C. both A and B
D. neither A nor B

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Jay Belsky implies that the study of child care ______.

A. was never carried out in the past
B. was not much done in detail in the past
C. was greatly ignored by psychologists and researchers
D. was interesting, but very difficult to make discovery

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For two students ad D would be more economical than ad C because ______.

A. they would share a room
B. the basic expenses are cheaper
C. there are no extras except for food
D. there is free use of the garden

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胃溃疡最常见的合并症是

A. 出血 B. 幽门梗阻 C. 癌变 D. 穿孔

混合性血栓可见于

If a child is bitten or startled several times by a dog, he may learn to associate furry (有毛皮的) animals with pain or startle and thus develop a fear of furry animals. This is a typical example of learning through ______.

Jay Belsky implies that the study of child care ______.

For two students ad D would be more economical than ad C because ______.

A. 出血
B. 幽门梗阻
C. 癌变
D. 穿孔