题干

两数之差是13.6,如果被减数减少1.6,减数不变,差是(  )

A:13.6

B:12

C:15.2

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答案(点此获取答案解析)

B

同类题3

阅读材料,完成下列要求。

材料一  西周时,“耒耜为主要农具,一人跖(踏)耒而耕,不过十亩”。(秦国)用注填(门里面一个於)之水,溉泽卤之地四万顷,收皆亩一锺,于是关中为沃野”。(魏国改革家)李悝说:“今一夫挟五口,牛犁并举,治田百亩,岁收亩一石半,为粟百五十石。”

——《中华文明史》

材料二  农业问题一直是苏联战后国民经济发展的薄弱环节。赫鲁晓夫执政期间,他根据在苏联的乌克兰地区农民传统种植玉米和美国农场种植玉米成功的经验,看到了提高粮食产量和给畜牧业提供饲料的前景,于是大力推广玉米种植。但玉米属于喜高温高湿的作物,而高寒的西伯利亚不适宜玉米的生长。他不顾苏联东西部气候差异的具体特点和已形成的农作物播种格局,要求在苏联的每一个集体农庄和国营农场都普遍种植玉米。在伴有行政命令式的要求下,玉米的种植面积迅速扩大。1953年为550万公项,1956年达1640万公项,1962年增至3710万公顷。许多原来种植传粮食作物小麦和黑麦的耕地也种上了玉米。而这些被“排挤”的农作物比玉米更适合当地的土壤和气候条件。玉米在很多地方因生产条件不适和管理不善,产量并不高,质量也很差。由于采取粗放式的经营方式,导致垦荒地区地力耗尽,垦荒运动被迫停止。

——摘编自《赫普晓夫执政史》

材料三  浙江温州地区三个重要年代的农业和经济发展指标

年份

农业总产值(亿元)

比上年增长率

财政收入(亿元)

比上年增长率

社会消费总额(亿元)

比上年增长率

1956

2.95

24.5%

0.53

24.8%

1.85

10.3%

1979

7.78

14.12%

1.35

66.6%

6.30

42.5%

1993

44.53

8.7%

18.68

54.4%

92.51

36.3%

——《中共浙江省温州历史大事记(1949—1994年12月)》

同类题4

阅读理解

                                                                                              America's top comic book stores

    New York City, NY - JHU Comic Books

    NYC has a number of impressive comic book stores. While other comic book stores in the city fill their shelves with other products like cards and board games, JHU focuses only on the comics themselves, with shelves filled with great selections of the latest releases and back issues from wall to wall. (32 East 32nd St, 212 — 268 — 7088)

    Austin, TX-Austin Books & Comics

    Opened in 1977, Austin Books &. Comics is one of Texas' biggest and longest running comic book stores. Not only do they sell the latest issues, they also carry many first editions and back issues. Good news is that they often hold regular book purchase discount activities, which means that you'd better consult them before your visit. (5002 N Lamar Blvd, 512-454-4197)

    Washington D. C. - Big Planet Comics

    This store, originally from Georgetown, prefers the more independent, small-press titles as well as stuff from Europe and Japan that your kids probably haven't even heard of, but they also carry the more popular ones. True to its name, BPC has established its own comic book world, with book signing and meet-and-greet events, and their very own, though tiny, comic book publishing house. (1520 U St NW, 202 —342 —1961)

    Portland 9 OR - Floating World Comics

    Floating World Comics is not only a comic book store but a community hosting art shows. Priding itself on cool style, this is an ideal place for comic books, where art books fill shelves just as much as the more mainstream comics. Both the future artists and the comic book lovers in your family will more than appreciate a stopover during your Portland vacation. (400 NW Couch St, 503-241-0227)