大黄中的成分属于() A．蒽醌 B．生物碱 C．皂苷 D．黄酮 E．香豆素

某一细胞因子在淋巴细胞识别Ag时作为第二信使，使T细胞活化成为效应细胞参与免疫应答，该细胞因子是（）

A.IL-1

B.IL-2

C.IL-4

D.IL-10

E.IL-12

Passage Three

Mary Barton, particularly in its early chapters, is a moving response to the suffering of the industrial worker in the England of the 1840’s. What is most impressive about the book is the intense and painstaking effort made by the author, Elizabeth Gaskell, to convey the experience of everyday life in working-class homes. Her method is partly documentary in nature: the novel includes such features as a carefully annotated reproduction of dialect, the exact details of food prices in an account of a tea party, an itemized description of the furniture of the Bartons living room, and a transcription (again annotated) of the ballad "The Oldham Weaver". The interest of this record is considerable, even though the method has a slightly distancing effect.

As a member of the middle class, Gaskell could hardly help approaching working-class life as an outside observer and a reporter, and the reader of the novel is always conscious of this fact. But there is genuine imaginative re-creation in her accounts of the walk in Green Heys Fields, of tea at the Bartons house, and of John Barton and his friend’s discovery of the starving family in the cellar in the chapter "Poverty and Death". Indeed, for a similarly convincing re-creation of such families’ emotions and responses (which are more crucial than the material details on which the mere reporter is apt to concentrate) , the English novel had to wait 60 years for the early writing of D. H. Laurence. If Gaskell never quite conveys the sense of full participation that would completely authenticate this aspect of Mary Barton, she still brings to these scenes an intuitive recognition of feelings that has its own sufficient conviction.

The chapter "Old Alice’s History" brilliantly dramatizes the situation of that early generation of workers brought from the villages and the countryside to the urban industrial centers. The account of Job Legh, the weaver and naturalist who is devoted to the study of biology, vividly embodies one kind of response to an urban industrial environment: an affinity for living things that hardens, by its very contrast with its environment, into a kind of crankiness. The early chapters—about factory workers walking out in spring into Green Heys Fields; about Alice Wilson, remembering, in her cellar the twig-gathering for brooms in the native village that she will never again see; about Job Legh, intent on his impaled insects—capture the characteristic responses of a generation to the new and crushing experience of industrialism. The other early chapters eloquently portray the development of the instinctive cooperation with each other that was already becoming an important tradition among workers.

It can be inferred that the author of the passage believes that Mary Barton might have been an even better novel if Gaskell had （）.

A．concentrated on the emotions of a single character

B．made no attempt to re-create experiences of which she had no first hand knowledge

C．made no attempt to reproduce working-class dialects

D．managed to transcend her position as an outsider

一经发现并改正了程序中隐藏的缺陷，然后再重新执行以前发现这个缺陷的测试，查看此缺陷是否重现。这种测试方法被称作（）

A.增量测试

B.回归测试

C.大突击测试

D.动态测试

下列不属于企业费用的是( )。

A．工业企业在生产过程中耗费的原材料

B．机器设备折旧费和修理费

C．短期借款利息

D．处置固定资产净损失

招摇撞骗罪是指冒充（）工作人员招摇撞骗的，以牟取非法利益的行为，冒充人民警察招摇撞骗的，从重处罚。