题目内容

Which of the following is NOT mentioned by the author as a consequence of new technological developments

A. Older technologies die away.
B. The quality of life is improved.
C. Overall productivity increases.
D. More raw materials become necessary.

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狼疮性肾炎一般不表现为

A. 肾病综合征
B. 肾盂肾炎
C. 急性肾炎
D. 急进性肾炎

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

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

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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