简述甲状腺肿瘤的分类。

减慢心率从而降低心肌耗氧量，缓解心绞痛的药物是

A．硝酸异山梨醇酯(消心痛)

B．硝苯地平(心痛定)

C．胺碘酮

D．美托洛尔

E．硝酸甘油

下列物理量中是标量的是

A．向心加速度

B．周期

C．线速度

D．向心力

根据短文内容及首字母提示，填写所缺单词，将答案按序号填入下面表格内。

Recently, many English teachers from universities all over China came together. They discussed h   1   to use newspapers to teach English. Wu Ping, a university professor, said that her university has b  2   a course on newspaper reading for freshman English majors. They use English newspapers to t___3___. It is said that the s   4   enjoy the course. “They say newspapers help them learn English, and also tell them the latest news a   5  the world,” he said.

Outside the classroom, English newspapers are thought by many people to be o  6 of the most important and effective ways to learn English. One of the professors believes that newspapers are better t    7   other teaching materials in four ways. First, the stories are i   8   and can get the students to read on. S  9  , the language is modern and up-to-date. Newspapers cover lots of topics like sports, culture, e   10    and so on. And last but not least, the language is very practical, and can be used in our daily life.

过剩空气系数的说法不正确的是（）。

A、过剩空气系数决定着燃烧的好坏

B、过剩空气系数决定着燃烧的热效率的高低

C、加热炉在保证燃烧完全的前提下，尽量降低过剩的空气系数

D、炉膛内燃料燃烧的好坏与过剩空气系数无直接关系

水情自动测报系统遥测站分为（）站，（）站，雨量水位站三种型式。