粘度杯测定法时，其流出的孔径为（）mm。 A.2 B.3 C.4 D.5

The field of medicine has always attracted its share of quacks and charlatans — disreputable women and men with little or no medical knowledge who promise quick cures at cheap prices. The reasons why quackery thrives even in modern times are easy to find.To begin with, pain seems to be a chronic human condition. A person whose body or mind "hurts" will often pay any amount of money for the promise of relief. Second, even the best medical treatment cannot cure all the ills that beset men and women. People who mistrust or dislike the truths that their physicians tell them often turn to more sympathetic ears.Many people lack the training necessary to evaluate medical claims. Given the choice between (a) a reputable physician who says a cure for cancer will be long, expensive and may not work at all, and (b) a salesperson who says that several bottles of a secret formula "snake oil" will cure not only cancer but tuberculosis as well, some individuals will opt for "snake oil".Many "snake oil" remedies are highly laced with alcohol or narcotic drugs. Anyone who drinks them may get so drunk or stoned that they drown their pains in the rising tide of pleasant intoxication. Little wonder that "snake oil" is a popular cure-all for minor aches and hurts! But let there be no misunderstandings. A very few "home remedies" actually work. However, most remedies sold by quacks are not only useless, but often can be harmful as well.

People who seek the advice of quacks and charlatans are those who________.

A．are poorly educated

B．are highly educated

C．dislike medical treatments

D．mistrust physicians’ truths

对旅游投诉处理决定书或行政处罚决定书逾期不申请复议，也不向人民法院起诉，又不履行处理决定和处罚决定的，申请人民法院强制执行或者依法强制执行的申请人是（）。

A．投诉者

B．被投诉者

C．利害关系人

D．作出决定的投诉管理机关

通过细胞间液弥散到邻近的细胞发挥作用的激素作用方式（）

A.神经分泌

B.自分泌

C.邻分泌

D.旁分泌

E.远距分泌

一条及时的信息可能使濒临破产的企业起死回生，一条过时的信息可能分文不值，甚至是企业丧失难得的发展机遇，造成严重后果，这说明信息具有（）特征。

A、差异性

B、传递性

C、时效性

D、共享性

变压器的效率是指输入功率与输出功率的百分比。（）