心肌快反应细胞第三期复极主要与下列哪种离子外流有关：（） A.Na+ B.K+ C.

In the modern world , advertising is everywhere ! Some people think  ___    __  ads are great . Others hate ads , saying that they make our cities and countryside look ugly. Many ads are aimed __    __ at teenagers , and some young people see more than 100 advertisements a day . It is true that some ads can be very  __    __ . For instance , they can help you compare two different products so that you can buy the one you really need . They can also help you ___    ____ money. When prices are listed , you can go to the store with the lowest__    __. Ads also tell you when stores are having sales . However , some advertising can be confusing or misleading . Sometimes the words sound good but don't really tell you anything about the quality of the product . At other times , the picture in an ad__    __ a lot better than the real thing . So you have to be careful . At times , an ad can lead you to buy something you don't need at all .

小题1:A. that                   B. what       C. which

小题2:A. Impossibly.    B. impolitely.    C. specifically.

小题3:A. awful          B. useful         C. careful.

小题4:A. save          B.waste.          C.lend.

小题5:A. pictures.       B. stores.       C. prices.

小题6:A.sounds .         B. looks.         C. feels.

动脉硬化可分为（）硬化，（）硬化以及（）硬化三种。

目前，我国安全生产监督管理体制是综合监管与行业监管相结合、( )、政府监督与其他监督相结合。

A．国家监察与地方监管相结合
B．群众监督与专业机构监督相结合
C．新闻媒体监督与社会监督相结合
D．个人监督与集体监督相结合

患者男性，33岁，血尿伴尿痛5年，患者无明显诱因下出现解小便有肉眼血尿，伴尿痛，有尿频、尿急、尿痛，有尿失蔡，夜尿次数增多。无恶心、呕吐、发热。查体：双肾无叩击痛，左侧脊肋点压痛（-），右侧脊肋点压痛（+）

本病的影像学诊断主要依赖于（）

A.B超

B.MRI

C.尿路造影

D.血管造影

E.CT

风管采用黑铁皮制作时，若采用气焊连接，其黑铁皮的厚度应为（）

A、小于0.5mm

B、小于0.7mm

C、0.8-3mm

D、大于3mm