具有止血、活血作用的药物是A.丹参 B.大蓟 C.三七 D.仙鹤草 E.川芎

题型:单项选择题

问题:

具有止血、活血作用的药物是

A.丹参

B.大蓟

C.三七

D.仙鹤草

E.川芎

考点:西药执业药师药学专业知识(二)西药执业药师药学专业知识(二)35
题型:单项选择题

DIY, which means Do It Yourself, is quite popular in the UK. Lots of stores and supermarkets sell DIY things. TV programs show people how to DIY.

English people like DIY. If there is anything that needs fixing (修理) around their homes, such as                       p 小题1:   the walls or putting in a new shower, they will do the jobs themselves. They share DIY                 e 小题2:   with their friends. More and more people are fond of DIY and have d 小题3:  the joy of DIY. Sometimes people also DIY for saving money. At present, many people can’t a 小题4:   a big house. They are looking at how they can make their houses better without spending a lot of money. It is not surprising that DIY is so popular.

DIY can be difficult. There is a large market for DIY furniture (家具) which needs to be got together by people themselves w 小题5:   a few tools. However, people often find it not easy to build a piece of furniture because they can’t understand the instructions (指令). Sometimes the instructions are simple and clear, but the furniture i 小题6:  is difficult to build. DIY can also be dangerous if you are not careful enough. It is r 小题7:   that in just one year over 230,000 people were hurt while doing DIY in the UK, including 41,000 who fell off ladders.

DIY can bring us a lot of f 小题8:   and can help us save some money, but it is not always as easy as it is t 小题9:  to be if we do something that is too hard. Maybe factories should make products that are easier and s 小题10:   for us to DIY.

题型:单项选择题

根据道路货物运输行政管理对货运车辆管理的要求,道路货运经营者应建立货运车辆()制度。

A.运行管理

B.调度管理

C.技术管理

D.维修管理

题型:单项选择题

                       奇招击退红潮

丹丘生

① 在湖泊和海洋里,当藻类一生二、二生四,四生八……这样漫无节制地繁殖起来的时候,就形成了红潮。红潮来时,因藻类生长吸收了太多的氧气,致使当地的水域严重缺氧,大量水生植物窒息而死,此外,红潮还会在水中释放出神经毒素,使与之接触的人感染上呼吸道和神经系统疾病,甚至患上癌症。

②一直以来,人们都对红潮束手无策,他们所能做的,只是听天由命,按事物发展盛极必衰的规律,耐心等待着红潮自己消失,但现在,科学家终于找到了一种消除红潮的办法——用超声波消除藻类。

③藻类之所以能漂浮在水面,而不会沉到水底,是因为它们身体里含有一种浮力细胞,里面含有氮气气泡,它们就像藻类与生俱来的“救生圈”,靠着这些气泡的浮力,就使整棵植株漂浮在水面上。

④而人们就抓住了藻类的这一特点,用特定频率的超声波引起浮力细胞里的气泡共振,当共振达到一定强度,气泡就会把细胞胀破,使得藻类失去浮力的支撑而下沉。一旦失去了水面的阳光,藻类在水下很快就会死亡。

(选自2013年第1期《大科学》)

小题1:请用简洁的语言概括红潮的危害。(2分)

                                                                                           

小题2:第③自然段运用了哪种说明方法?它有什么作用?(2分)

                                                                                           

题型:单项选择题

确诊脓肿的主要依据是()

A.波动感

B.发热

C.功能障碍

D.WBC计数增加

E.全身乏力

题型:单项选择题

本船前方同一方位上有两艘小船,相距150米,若要在雷达荧光屏上使这两艘小船回波分开显示,则在()脉冲宽度上才行。

A.0.8微秒

B.1.2微秒

C.1.5微秒

D.2微秒

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