试述体育教学的组织形式。

根据经济形势的变化，中央会议提出调整经济的措施，这体现了

A．国家宏观调控

B．市场调节的作用

C．党执政为民

D．政府依法执政

在某铁的样品中可能含有Zn、Mg、Al、Cu等杂质金属中的2种，取5.6克样品跟足量的稀硫酸反应，得到0.2克H₂，则此铁的样品中不可能含有的杂质金属组是（　　）

A．Mg和Cu

B．Zn和Al

C．Mg和Al

D．Zn和Mg

Some years ago on a hot summer day in south Florida a little boy decided to go for a swim in the old swimming hole behind his house．In a hurry to dive into the cool water, he ran out of the back door, leaving behind shoes, socks, and shirt as he went．

He flew into the water, not realizing that as he swam toward the middle of the lake, a crocodile was swimming toward him．His mother in the house was looking out of the window and saw the two．In great fear, she ran toward the water, shouting to her son as loudly as she could．Hearing her voice, the little boy became alarmed and made a U-turn to swim to his mother．It was too late．Just as he reached her, the crocodile reached him．From the shore, the mother grabbed her little boy by the arms just as the crocodile snatched his legs．That began an incredible tug-of-war between the two．The crocodile was much stronger than the mother, but the mother was much too passionate to let go．A farmer happened to drive by, heard their screams, raced from his truck, took aim and shot the crocodile．

Remarkably, after weeks and weeks in the hospital, the little boy survived．His legs were extremely scarred by the attack of the animal．And, on his arms, were deep scratches where his mother’s fingernails dug into his flesh in her effort to hang on to the son she loved．

The newspaper reporter, who interviewed the boy, asked if he would show him his scars．The boy lifted his legs．And then, with obvious pride, he said to the reporter, “But look at my arms．I have great scars on my arms, too．I have them because my Mom wouldn’t let go．”

Never judge another person’s scars, because you don’t know how they were made．

小题1:By saying “But look at my arms．I have great scars on my arms, too” in paragraph 4,the boy really wants to show__________．

A．how deep the scars made by the crocodile were

B．what a brave and courageous boy he was

C．how many scars and scratches he had

D．how great and beloved his mother was小题2:Hearing Mother’s shouts, the boy______．

A．remained in the middle at a loss

B．didn’t stop swimming forwards

C．swam back towards the shore

D．was ready to fight the crocodile小题3:Which of the following statements is true according to the text?

A．A crocodile attacked him when the boy and his mother were swimming．

B．The crocodile bit the arms of the boy when it reached him．

C．There is always an interesting story behind every scar．

D．It was the farmer who shot the crocodile．小题4:Which of the following will be the best title for the text?

A．Scars of Love

B．Women Hold up Half the Sky

C．A Terrible Experience

D．Don’t Judge by Appearances

属病因诊断的是

A．肺球菌性肺炎

B．寒战、高热

C．呼吸衰竭

D．病变在右肺上叶

E．肺实变

票据交换应当遵循的原则是（）。

A.先付后收

B.先收后付

C.收妥抵用

D.差额清算

E.银行不垫款