中队规定值班人员必须（）巡视一次设备运行情况。 A.30分钟 B.60分钟 C.90

阅读理解。

Australia has a lot of lovely animals. The most famous ones are kangaroos and koalas.      The kangaroo is the symbol of Australia. They have large eyes and ears. They don't walk, they jump. They use their strong back legs. They can jump at up to 74 kilometres per hour. They can go over nine metres in one jump!      Kangaroo mothers have pouches (育儿袋) to carry their babies. The babies stay inside to get milk and keep warm. Kangaroos are everywhere in Australia. They are on TV, in books and in the shops. The government even wants to put them on passports (护照).     There are about 20 to 25 million kangaroos in Australia. That's more than the number of people in the country! Some kangaroos go hungry because there is not enough to eat. They break into farms for food. Farmers are very angry with them. To help the farmers, the Australian Government kills some kangaroos each year.     The koala is another famous Australian animal. They look like bears, and have small eyes and big noses. They eat leaves from gum trees, where they spend most of their time.      Koalas have a special smell. They use it to mark (标识) their home -"this is my place, you can't come in!"      Like kangaroos, a koala baby lives in its mother's pouch.      But koalas have fewer places to live. There are about 100,000 koalas in Australia. There is a law to keep them safe.

根据文章所提供的袋鼠和考拉的生活状况，用简洁的句子完成下列表格： Kangaroos Koalas Looks 1.                                     2.                                      Food Not enough to eat 3.                                      Numbers 4.                                     5.                                      Life Some kangaroos are killed. 6.

下表反映了中国近现代史四个不同时期阶段特征的主题词，其中1921～1935年处应该填写

1894～1912：推翻帝制，走向共和

1921～1935：

1949～1956：民族独立，获得新生

1978～2001：改革开放，坚定不移

A．五四风雷，抗日烽火    B．开天辟地，渐趋成熟 

C．国共对峙，走向抗战   D．星星之火，力挽狂澜

设R和S分别是字母表∑上的正规式，则有L（R
S）=L（R）∪L（S）。

我国自上世纪70年代末建立新的80坐标系时，采用的是IUGG椭球体椭球体。

请问以下诗句中哪一项是“男人诗”？（）

A.看朱成碧思纷纷，憔悴支离为忆君

B.北风厉兮肃冷冷，胡笳动兮边马鸣

C.明月不谙离恨苦，斜光到晓穿朱户