存在潮汐周日不等的海区，一个太阴日里相邻两次低潮中潮高较低的低潮称为（）。A．高高潮

阅读以下材料，并回答下列问题：

A、哺乳期间的母狗为母亲不肯喂奶的小老虎当奶妈，并对小虎关怀备至。

B、幼小的黑猩猩能模仿成年的黑猩猩，用寻找合适的石块当“锤子”和“砧板”砸坚果。

C、温带和寒带地区的青蛙、蛇、刺猬等动物，每年冬季都要进行冬眠。

D、农村的狗看到人们蹲下做出拣石头的动作就会逃跑。

E、海洋公园里的海豚能进行顶球、转圈和跳跃等表演。 F、刚出壳的小鸭子会自己进食和游泳。

（1）先天性行为是由动物生来就有的，由动物体内的___________所决定的行为，学习行为是在遗传因素的基础上，通过__________的作用，由________和_________而获得的行为。上述材料中属于动物的学习行为的有：______________。

（2）学习行为对动物维持生存有什么意义：_________________________________。

（3）除上述实例外，请你再举出二种动物的先天性行为和二种动物的学习行为。

先天性行为_________________________。学习行为：_____________________________。

XI’AN – China has introduced various emergency responses and long-term measures against air pollution in the central and eastern regions.

The air quality index (AQI) for Xi’an reached 500 on Wednesday afternoon, at the top of the AQI scale, according to the national air quality monitoring website. Xi’an weather forecasters predict the smog (雾霾) will continue for the next week and air pollution may worsen.

“I have to keep buying masks for my family,” said Liu, buying masks at a pharmacy (药店) near her home in downtown Xi’an. “This is the only thing we can do to protect ourselves.”

On Wednesday, a city government emergency response plan was put into action, suspending all construction and taking at least 50 percent of government vehicles off the road. Power plants must limit their output and reduce emissions.

Nearly half the country, more than 100 cities in 20 provinces, has suffered from smog since last December. Many have taken action, including experimenting with artificial methods to reduce smog, limiting vehicle use and fining polluters.

Assessments based on GDP alone were abandoned last month and more emphasis has been put on public well-being and the environment. Whether the move will be effective in forcing local governments consider environmental issues over economic growth remains to be seen. Environmental protection professionals are doubtful about the immediacy of the effects of these measures.

Xiao Hang, an urban researcher at the Chinese Academy of Sciences, said it took London 50 years to lose the moniker (绰号) “foggy London town”, and Los Angeles still struggles to control its photochemical (光化学) smog. “We can’t ignore environmental problems during the development process and China has a long way to go,” he said.

小题1:What would be the best title for the article?

A．AQI for Xi’an reached 500

B．Smog crisis tries the limits of people’s patience

C．Smoggy Chinese cities to clear the air

D．Dust masks become hot sellers小题2:The underlined word “suspending” in Paragraph 4 can be replaced by ________.

A．encouraging

B．stopping

C．continuing

D．expanding小题3:We can infer from the article that _________.

A．China is the only country suffering from smog

B．environmental professionals believe the air quality will soon be improved with these measures

C．assessments based on GDP alone were harmful to environmental protection

D．Xi’an was the most polluted city in China小题4:What Xiao Hang said indicates _____________.

A．London still has serious air pollution after 50 years of effort

B．the development of China is more important

C．solving environmental problems requires great effort

D．it’s normal for China to have environmental problems

2016年中央一号文件提出，推动农业可持续发展，必须加快形成（）的农业发展新格局。

A.资源利用高效

B.生态系统稳定

C.产地环境良好

D.产品质量安全

下列防范措施中，( )不是质量纠纷的防范措施。

A．完善质量保修制度

B．严格按照建设程序进行工程建设

C．按照法律、行政法规和建筑工程质量安全标准的要求进行设计和施工

D．避免合同总价与分项工程单价之和不符

如果一个钻机每0.015秒钻一个孔，那么，该钻机1小时能钻多少个孔

A．24000

B．54000

C．240000

D．540000