写出有关“水”的四字词语。

甲状旁腺功能低下（）。

A．血钙增高，血磷降低

B．血磷增高

C．血钙和血磷同时增高

D．血钙和血磷同时降低

E．血钙降低，血磷升高

我国地域辽阔，自然环境复杂多样，各地区利用不同的自然条件，趋利避害，发展经济，并形成了富有地方风情的生活习惯和文化传统。根据图文资料，回答下列问题。（15分）

材料一：

材料二：商品粮基地是指历来以产粮为主，粮食商品率较高，能稳定地提供大量余粮的农业生产地区。

（1）参照文本框中对A省区的描述，在空白框中完成对B省区的描述。（4分）

（2）根据图文资料，分析归纳两个地区农业生产的共同优势，以及存在的主要自然灾害。（4分）

	优势条件	灾害
东北三省
华北平原

（3）针对华北平原农业发展中的不利因素，请帮助当地的人们出谋划策。（3分）

（4）东北三省与华北平原都是我国的粮食主产区，为什么东北三省能够成为我国最大的商品粮基地？（2分）

（5）根据图文资料，解释东北人夏季户外活动时间比其他季节长的原因。(2分)

There are two kinds of people in the world. Those of the first kind are born idlers (游手好闲者), taking interest in nothing. It seems what they live for is to pass time idly. They simply don’t know why they have to do so, nor will they bother to ask. The other kind are those who take things seriously and never wish to idle away their life. But only a part of the second group are eager enough to make success. All the others fail to make enough effort to make their dreams come true. 

Why do things so happen to them? What are the reasons?

I later find out that some people are determined. They are “igniters” that catch fire of their own, giving light and heat. But that’s not the case with others. They may be fuels but not igniters. As pieces of wood or coal, they need a match or a lighter to make them burn so that their energy can be released to give off light and heat.

The majority of people need some igniter to light them. Thus igniter becomes a must for those people to succeed. Unless a suitable igniter comes their way, they will always remain idle like cold unused firewood or coal.

Fortunately, such an igniter is not difficult to meet. One may find it in an instructive book, a film story, a few words of a close friend, some advice of a good teacher, a pleasant journey, or an unexpected love.

Any of these, coming at the right time, can serve as an igniter to start one’s enthusiasm for learning or for a better career, to turn him from a passive state of waiting to an active state of pursuing, to lend him strength to go ahead bravely. In that case, what he has prepared for years will be quickly turned into fruitful reality.

Such an igniter may turn up of itself, but most likely we have to find it ourselves. Never let a chance slide away, for it is the key to your success.

小题1: According to the text, “________” are the persons that can light many people so that their energy can be released to give off light and heat.

A．idlers

B．igniters

C．fuels

D．serious people小题2: According to the writer, what do most people definitely need to succeed? 

A．Storing a lot of energy.

B．Great interest in everything.

C．An igniter coming at the right time.

D．Wonderful dreams about a bright future.小题3: The writer writes the article to _________.

A．describe two kinds of people

B．encourage people to find chances to succeed

C．praise those who work hard

D．make fun of idlers

根据《行政诉讼法》规定，相对人对具体行政行为不服直接向人民法院提起诉讼，应当在知道作出具体行政行为之日起( )内提起，法律另有规定的除外。

A．15日
B．30日
C．2个月 D．3个月

一般在检查龈沟出血指数前不能检查

A．简化软垢指数

B．简化牙石指数

C．菌斑指数

D．牙龈指数

E．社区牙周指数