在勘探阶段严密控制与先期开采地段或初期采区有关的主要可采煤层露头位置，在掩盖区，隐藏

治安行政管理工作的主要任务是打击违法犯罪，查处治安案件，组织群众治安力量，维护社会治安秩序。 ( )

资金时间价值理论是一种具有广泛实用价值的理论，根据这一原理计算不同时期货币的现值来分析投资项目的( )。

A．消费与补偿

B．费用与价值

C．费用与效益

D．效益与补偿

破碎设备应经常采用筛分法来检查，检查内容为出料最小粒度。

我国《证券法》规定，证券在证券交易所上市交易，应当采用（）或者国务院证券监督管理机构批准的其他方式。

A.公开的分散交易方式

B.非公开的集中交易方式

C.非公开的分散交易方式

D.公开的集中交易方式

Euthanasia has been a topic of controversy in Europe since at least 1936. On an average of six times a day, a doctor in Holland practices "active" euthanasia: (1) administering a lethal drug to a (2) ill patient who has asked to be relieved (3) suffering. Twenty times a day, life prolonging treatment is withheld or withdrawn (4) there is no hope that it can (5) an ultimate cure. "Active" euthanasia remains a crime on the Dutch statute books, punishable (6) 12 years in prison. But a series of court cases over the past 15 years has made it clear that a competent physician who (7) it out will not be prosecuted.

Euthanasia, often called "mercy killing", is a crime everywhere in Western Europe. (8) more and more doctors and nurses in Britain, Germany, Holland and elsewhere readily (9) to practicing it, most often in the "passive" form of withholding or withdrawing (10) The long simmering euthanasia issue has lately (11) into a sometimes fierce public debate, (12) both sides claiming the mantle of ultimate righteousness. Those (13) to the practice see themselves (14) sacred principles of respect for life, (15) those in favor raise the banner of humane treatment. After years (16) the defensive, the advocates now seem to be (17) ground. Recent polls in Britain show that 72 percent of British (18) favor euthanasia in some circumstances. An astonishing 76 percent of (19) to a poll taken late last year in France said they would like the law changed to (20) mercy killings. Obviously, pressure groups favoring euthanasia and "assisted suicide" have grown steadily in Europe over the years.

18（）

A.patients

B.subjects

C.residents

D.physicians