[单选题]某医院计划发展社区护理服务项目,需要对计划的前提条件进行评估分析,属于外部前提条件的是
A.可提供社区服务的护理人员
B.医院医疗设备情况
C.医院可提供社区服务中心的场所
D.医院所处社区人口的数量
E.医院建立社区服务中心的经费

Analysts have their go at humor, and I have read some of this interpretative literature, (1) without being greatly instructed. Humor can be (2) , (3) a frog can, but the thing dies in the process and the innards are (4) to any but the pure scientific mind.
One of the things (5) said about humorists is that they are really very sad ’people clowns with a breaking heart. There is some truth in it, but it is badly (6) . It would be more (7) , I think, to say that there is a deep vein of melancholy running through everyone’s life and that the humorist, perhaps more (8) of it than some others, compensates for it actively and (9) Humorists fatten on troubles. They have always made trouble (10) They struggle along with a good will and endure pain (11) , knowing how well it will (12) them in the sweet by and by. You find them wrestling with foreign languages, fighting folding ironing ho
A. while
B. although
C. but
D. if

[听力原文]
W: What are the historical trends with respect to marriage and family
M: The "traditional nuclear family", consisting of a breadwinner-husband and a homemaker-wife raising children, was the norm for most households in the United States in the 1950s. In these traditional families, married couples were usually of the same religion, the same race, and the same socio-economic class, and they were supposed to live together for the rest of their lives even if the relationship was abusive or dysfunctional. Times have changed. Today, the "Ozzie and Harriet" family constitutes only about 10 percent of all families (1). Family diversity is now the norm, with 25% of households consisting of adults living alone, and the rest made up of people living in a variety of family structures, such as dual-income families, single-parent families, step-families, inter-racial families, inter-faith families, foster families, cohabiting
A. The changing and changed family diversity.
B. Aggressive enforcement of domestic violence laws.
C. Greater social acceptance of unmarried cohabitation.
D. Changing religious attitudes and more spiritual flexibility.