佝偻病的原因是A.维生素D缺乏B.维生素A缺乏C.叶酸缺乏D.维生素B1缺乏E.维生

题型:单项选择题

问题:

佝偻病的原因是

A.维生素D缺乏
B.维生素A缺乏
C.叶酸缺乏
D.维生素B1缺乏
E.维生素E缺乏

考点:临床执业助理医师预防医学预防医学(五)
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甲、乙两块合金一样重,甲合金中银与铜的比为2:5,乙合金中铜与银的比是3:1,现将甲、乙两块合金合成一块,则新的合金中银与铜的比为______.

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MOST recently, my world has been shaken by the death of a teacher at my school. He was Dr Allan Woolley and he was only 52. Suddenly he took his own life, which remains a mystery.

That morning, everyone sensed that something wasn't right. During our lessons, an announcement was made that an assembly (集会) was scheduled for morning break, which was only done in emergencies.

Once morning break came, the entire school gathered in the main hall. As our headmaster marched out to announce the "momentous (重大的) news", it felt like the air around us trembled . Many students broke down in tears, and the reaction afterward was intensely powerful and unifying .  

The headmaster said that students were allowed to miss lessons and have a free period to collect themselves if they found the news too distressing (悲伤的). Many students went outside and shared memories of Dr Woolley to control theirselves.

Dr Woolley taught me chemistry two years ago, but up until his death he still taught many of my close friends. Many of my friends were so shocked that they still couldn't believe the person that they had owed (欠) some homework to was now dead.

It was heart-warming to spend time with teachers that morning and get to know more about them. Despite the time of sadness, I feel that every cloud has a silver lining. Although Dr Woolley's death is something nobody wanted to see, we must move on.

小题1:What did the students feel at the news of his teacher’s death?

A.unhappy   B shocked    C.surprised    D.silent

小题2:What does the underlined word “collect” in Paragraph4 mean?

A.bring something together

B.calm down

C.increase in amount

D.get and keep小题3:Which of the following is NOT true according to the passage?

A.The real cause of Dr Woolley’s death is known to us.

B.Many students didn’t prepare themselves for the bad news so that they felt very sad.

C.It takes the whole school some time to recover from the dispressing news.

D.Dr Woolley’s death allows students to understand teachers better.小题4:It can be inferred from the underlined sentences in the last paregraph that______.

A.Dr Woolley’s death made students sad.

B.There is still some comfort and hope in trouble

C.Dr Woolley’s death disappointed students greatly

D.We should forget the fact to study better.小题5:The best title for the passage should be_______.

A.Our School Faces a Tragedy

B.Dr Woolley—A Great Teacher

C.The Living Live For the Death

D.Lesson From the Death.

题型:单项选择题

脱式计算:

①124+13-25+75

②(37+43)×(96÷12)

③(164+67)÷(31-14)

④(213+69)-18×13.

题型:单项选择题

平静水面中,当水面与吃水标志数字下端相切时,吃水的正确读取方法是:()

A.以该数字为准

B.相切处按比例读取

C.以相切处相邻两数字的平均值为准

D.以水面下第一数字为准

题型:单项选择题

肺俞(Fèishǖ,BL13)足太阳膀胱经;肺之背俞穴

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