桦木科有（）；（）、鹅耳枥属、榛属

读二分二至日图，回答问题:

小题1:A、B、C、D四个位置当中，太阳直射北回归线的是   ；直射南回归线的是   ；直射赤道的是   和   ；北半球有极昼发生的是____；北半球有极夜发生的是   。

小题2: 当地球由D运行至A过程中，哈尔滨市应处于      (季节)，白昼的时间越来越(长、短)，正午太阳高度越来越(高、低)。

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Nate suffered a hard blow when he lost his job．His boss had spoken rudely, “Your services are no longer needed.” Nate left the building filled with despair．By the time he reached home, he was in a deep depression．When he entered his house, he blurted out to his wife Sophia, “I lost my job．I am a complete, utter failure.” A tense silence followed．Then a smile crept across Sophia’s face．“What great news!” she responded.

“Now you can write the book you have always wanted to write.”

“But I have no job and no prospect of a job,” YC he objected, completely without hope．“If I struggle to be an author, then what will we live on? Where will the money come from?” Sophia took her husband by the hand and led him to the kitchen．Opening a drawer, she took out a box that was full of cash．“Where on earth did you get this?” Nate gasped．“To whom does it belong?”

“It’s ours!” Sophia replied．“I always knew that one day you would become a great writer if only you were given the chance．From the money you gave me for housekeeping every week, I have saved as much as I could so you would have your chance．Now there is enough to last us a whole year.”

What a surprise! What encouragement! What a wife! The unemployed husband did concentrate on writing that year, and the novel he wrote became a literary masterpiece．The book is The Scarlet Letter．Sophia had an even greater achievement, and she turned Nathaniel Hawthorne from a poor clerk into a world famous master．  

68．Which of the following can be inferred from the first paragraph?

A．Sophia was very disappointed to hear the news  

B．Nate was too sad to speak any more

C．Sophia was thinking of how to encourage Nate  

D．Neither husband nor wife had any idea what to do

69．Sophia saved money because _______________________．

A．she knew her husband would lose his job one day  

B．she knew their life would be in difficulty

C．she was very careful with money  

D．she was trying to help her husband in every possible way

70．From the passage we can know that Sophia was __________________________．

A．kind and brave        B．careful and encouraging

C．friendly and warm-hearted      D．honest and determined

71．What would be the best title for the passage?

A．Sophia’s Achievement    B．A Great Writer’s Struggle to Success

C．Great Encouragement in Hard Times     D．Failure is the Mother of Success

维吾尔族房前屋后一般栽种桃、杏、苹果树等，门前往往种植葡萄，形成凉棚。( )

伞齿轮箱检修质量要求是什么？

为使同一轴线上的两根轴能同时存在两种不同的转速，可采用( )。

A．牙嵌离合器

B．片式离合器

C．超越离合器