猪宰后需要摘除的“三腺”是指（）。A、腮腺、甲状腺、肾上腺 B、甲状腺、肾上腺、脑垂体

能止呕、止泻、止血的药物是（）。

针对水资源短缺带来的水价提高和人们消费观念的更新，海尔决定停产非节水型洗衣机而代之以国家A级标准洗衣机。这说明 [ ]

①消费对生产具有重要的反作用

②消费对生产的调整和升级起导向作用

③在买方市场上，消费决定生产

④生产决定消费

A、①②

B、②③

C、②④

D、①③

Only when ______ the data again ______ that there was a mistake. [ ]

A. they had studied; did they realize

B. they had studied; realized they

C. had they studied; did they realize

D. had they studied; realized they

In order to find ways of associating the new materials with ideas or objects with which the pupils are familiar, D.Ausubel would prefer ______.

A. straightforward explanation and exposition B. pupil-generated discovery methods
C. rote learning



D. inductive and deductive inference

SINUMERIK840D系统能在CNC上直接进行______编程，并与FANUC系统程序格式兼容。