单选题：听音频，回答下列题

题目分类：英语六级
题目类型：单选题
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题目内容：

听音频，回答下列题
A．Diamond-producing rivers are located far away the mountain side.
B．Diamonds can be formed without volcano heat and pressure.
C．Volcano explosions brought some diamonds up to the earth surface.
D．Explosions of the volcano can damage diamonds as well.

参考答案：

答案解析：

It can be inferred from the passage that a good literature

It can be inferred from the passage that a good literature teacher would A．tell

分类：英语六级题型：单选题

If mothers have negative experiences with their friends,

If mothers have negative experiences with their friends,A．they are more likely

分类：英语六级题型：单选题

According to studies, which of the following might be the re

According to studies, which of the following might be the reaction of patients

分类：英语六级题型：单选题

父母对孩子的无理取闹行为，不予理睬，可能慢慢地减弱这些行为这是（　　）。

父母对孩子的无理取闹行为，不予理睬，可能慢慢地减弱这些行为这是（　　）。A．代替法 B．惩罚法 C．增强法 D．消退法

分类：英语六级题型：单选题

因社交不良形成的压力源是（　　）。

因社交不良形成的压力源是（　　）。A．生物性压力源 B．社会性压力源 C．精神性压力源 D．混合性压力源

分类：英语六级题型：单选题