大黄致泻的主要成分是() A.大黄酚 B.没食子酸 C.结合型蒽苷 D.

题型:单项选择题 B1型题

问题:

大黄致泻的主要成分是()

A.大黄酚

B.没食子酸

C.结合型蒽苷

D.大黄素

E.小檗碱

考点:主管中药师泻下药泻下药题库
题型:单项选择题 B1型题

为测定电场中某点的电场强度,先在该点放一点电荷,电荷量为+q,测得该点的电场强度为E1;再在该点改放另一个点电荷,电荷量为-2q,测得该点的电场强度为E2。则

A.E1=E2,方向相同

B.E1=E2,方向相反

C.E1<E2,方向相同

D.E1>E2,方向相反

题型:单项选择题 B1型题


某电力建设公司将一电厂循环流化床锅炉安装工程进行邀请招标。某机电安装公司依据电力建设公司工程项目招标文件给定的工程量清单内容,以及采用综合单价法计算的要求,综合施工方案和企业定额等编制了投标报价文件。该公司以低价中标,与电力建设公司签订了固定总价合同。
机电安装公司虽然对工业锅炉安装比较熟悉,但对电厂循环流化床锅炉安装工程缺少经验,对施工图分析不够,材料费估算有遗漏,二次搬运费和不可预见费估计偏低。加之在施工期间材料费上涨,人工费提高;锅炉烟气采用电除尘和干式除尘系统与其他连接系统界定不明;电力建设公司提供的工程量有误。为此,机电安装公司向电力建设公司提出费用调整和索赔。

机电安装公司编制投标报价还应考虑哪些因素

题型:单项选择题 B1型题

It seems that the Englishman just cannot live without sports of some kind. A famous French humourist once said that this is because the English insist on behaving like children all their lives. Wherever you go in this country you will see both children and grown-ups knocking a ball about with a stick or something, as if in Britain men shall always remain boys and women girls! Still, it can never be bad to get exercise, can it?

Taking all amateur(业余)and professional sports in Britain into consideration, there can be no doubt that football is at the top of the list. It is called soccer in the United States. The game originated in Britain and was played in the Middle Ages or even earlier, though as an organized game, or “association football”, it dates only from the beginning of the 19th century.

The next is rugby, which is called “football” in the United States. It is a kind of football played by two teams of fifteen players rather than eleven. The rugby, in which an oval-shaped ball is used can be handled as well as kicked. It is a pretty rough game.

In summer, cricket is the most popular sport. In fact, it has sometimes been called the English national game. Most foreigners find the game rather slow or even boring, but it enjoys great popularity among the British.

Tennis rates high on the list, too. It was introduced into England from France in the 15th century, but it was from England that it spread to practically every country in the world.

Table-tennis or “ping-pong” surely is not played on a great scale as it is in China or in Japan. Basketball and volleyball were introduced into Britain during the late 19th century from America and are gaining popularity. Horse-back riding, swimming, rowing and golf all attract a lot of people.

小题1:The main purpose of paragraph one is to tell us that the English_______.

A.are all sports lovers

B.behave like children

C.like to kick a ball around

D.can remain young all their lives小题2:According to the passage, which of the following is NOT true about football and rugby?

A.They differ in the shape of the ball

B.They are played by different numbers of players

C.They both can be handled

D.They both can be kicked小题3:From the second and the third paragraph, we know that_____.

A.Americans love football most of all

B.British people love rugby most of all

C.Americans and British people may call the same thing differently

D.football originated in Britain in the 18th century

题型:单项选择题 B1型题

在净价交易中,( )的应计利息额是指本付息期“起息日”至“成交日”所含利息金额。

A.零息国债

B.附息国债

C.贴现国债

D.到期一次还本付息国债

题型:单项选择题 B1型题

患者,女,20岁,已婚。经行腹痛5~6年,经前数日小腹冷痛,得热痛减,按之痛甚,经量少,经色黯黑有块,舌苔白腻,脉沉紧。其证候是()

A.寒湿凝滞

B.气滞血瘀

C.气血虚弱

D.阳虚内寒

E.肝肾虚损

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