人体必需微量元素包括( ) A.硫、铁、氯 B.碘、镁、氟 C.铁、铬、钴 D.钙、

题型:单项选择题

问题:

人体必需微量元素包括( )

A.硫、铁、氯

B.碘、镁、氟

C.铁、铬、钴

D.钙、锌、碘

考点:公共营养师营养师四级公共营养师四级理论知识考试真题2011年
题型:单项选择题

 

(一)

某公司生产某产品,固定成本为100万元,单位可变成本为100元,产品的单位售价为150元。

根据上述材料,回答下列问题:

 

设E为利润,TR为销售收入,F为固定成本,V为单位产品变动成本,则盈亏平衡分析法的计算公式是()

A.TR=E-(F+V×Q)

B.F=TR-(E+V×Q)

C.E=TR-(F+V×Q)

D.Q=TR-(F+V×E)

题型:单项选择题

患者,男性,51岁。体检诊断为高血压,并伴有左心室肥厚,该患者最宜服用的抗高血压药物是()

A.钙拮抗剂

B.利尿药

C.神经节阻断药

D.中枢性降压药

E.血管紧张素转换酶抑制剂

题型:单项选择题

维生素C可用于预防和治疗坏血病等,其结构简式如图所示.下列关于维生素C的叙述不正确的是(  )

A.维生素C的化学式为C6H8O6

B.维生素C是一种水溶性维生素

C.维生素C中含有羟基、碳碳双键

D.维生素C不能发生氧化反应、还原反应

题型:单项选择题

Every year, I tell my sons what I'd like for Mother's Day: a letter. Something written from the heart and offered freely rather than bought from a store and wrapped neatly. I don't always get my wish, nor do I always take the time to write to my own mother.

This year, my boys will be in two different states on Mother's Day. My mom and dad will be away together, and I'11 be driving home from a writer's workshop in Massachusetts. Thinking of the fact that many friends have already lost their mothers and that a few have lost children, I am deeply grateful that what separates us, for now at least, is merely distance. It won't always be so, and there is no way to prepare for that fact other than to appreciate the moment that is. My sons know that they can please me on Sunday with a phone call or an e-mail, and that is enough as I love their words. The very best gift they can possibly give me is their own happiness, the very fact of their busy. full and well-lived lives.

Still, knowing that my years of staying with my sons are over, I do Feel doleful. The truth is, I miss being the center of the universe to two little boys. And this holiday can be a bit painful.

I wonder if my own mother ever felt nostalgic ('VTIH WJ) for the passing of my childhood. I wonder if she realizes that she is still at the center of my universe and always has been. I don't often pause to think about it. but of course she is the one who has been right there, at my side from the moment I drew my very first breath. How to ever fully appreciate the woman whose presence and 1ove and example have shaped me into the adult I am? How to describe even a small part of the sharing. sacrificing. and support she has given me over the years?

小题1:The author mainly wants to tell us through the first paragraph that _____.

A.she hopes to get her son's letters very much

B.her sons don't often write to her on Mother's Day

C.Mother's Day is the very date that she longs for most

D.she is very sorry not to write to her mother often小题2:The author is deeply grateful for the present life because ____.

A.her sons don't live far away from her home

B.her parents and children are still alive

C.her parents are coming to her house to spend Mother's Day

D.her sons can please her on Sunday with a phone call小题3:According to the author ______

A.young people nowadays tend to ignore their parents

B.parents should not give their children too much freedom

C.children's happiness and success are the biggest comfort to parents

D.parents are not the center of their children's universe when children grow up小题4:What does the underlined word "doleful" in paragraph 3 mean?

A.sad

B.excited

C.guilty

D.proud小题5:What will the author probably tell about after the last paragraph?

A.She'll tell the reader about her mother's present situation.

B.She'll recall how her mother educated and cared for her.

C.She'll describe the reunion of her family on Mother's Day.

D.She'll tell the reader about her mother's achievements in her career.

题型:单项选择题

航空器着陆前,气压高度表拨正值在QNH上,着陆后高度表指针将表示()。

A.零

B.机场标高

C.机场零点高度

D.机场标高加座舱高度

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