预防带绦虫病和猪囊尾蚴病最有效的方法是()。 A.便前便后洗手 B.长期服用吡喹酮

题型:单项选择题

问题:

预防带绦虫病和猪囊尾蚴病最有效的方法是()。

A.便前便后洗手

B.长期服用吡喹酮

C.不食生的羊肉、狗肉

D.吡喹酮、阿苯达唑交替使用

E.不食生的或未煮熟的肉的良好个人卫生习惯

考点:疾病控制(医学高级)传染性疾病控制传染性疾病控制题库
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32P标记S型肺炎双球菌的DNA,35S标记其蛋白质,将其加热杀死后与未作标记的R型活细菌混合并注入小鼠体内。一段时间后,从死亡的小鼠体内提取得到活的S型和R型细菌。下列有关元素分布的分析,最可能的情况是[ ]

A.部分S型细菌含有32P ,不含有35S

B.部分R型细菌含有32P和35S

C.所有S型细菌都含有32P,不含有35S

D.所有R型细菌都含有35S,不含有32P

题型:单项选择题

When we’re little, our mother is the center of our attention, and we are the center of hers. So our mother’s characteristics leave an indelible(持久的)impression, and we are forever after attracted to people with her facial features, body type, personality, even sense of humor. If our mother is warm and giving, as adults  we tend to be attracted to people who are warm and giving. If our mother is strong and even-tempered, we  are going to be attracted to a fair-minded strength in our mates.

The mother has an additional influence on her sons: she not only gives them clues to what they will find attractive in a mate, but also affects how they feel about women in general. So if she is warm and nice, her sons are going to think that’s the way women are. They will probably grow up to be warm and responsive lovers and also be cooperative around the house.

Conversely, a mother who has a depressive personality, and is sometimes friendly but then suddenly turns cold and rejecting, may raise a man who becomes a “dance-away lover”. Because he’s been so scared about love from his mother, he’s afraid of commitment and may pull away from a girlfriend for this reason.

While the mother determines in large part what qualities attract us in a mate, it’s the father—the first male in our lives—who influences how we relate to the opposite sex. Fathers have an enormous effect on their children’s personalities and chances of marital happiness.

Just as mothers influence their son’s general feelings toward women, fathers influence their daughter’s general feelings about men. If a father lavishes praise on his daughter and demonstrates that she is a worthwhile person, she’ll feel very good about herself in relation to men. But if the father is cold, critical or absent, the daughter will tend to feel she’s not very lovable or attractive.

In addition, most of us grow up with people of similar social circumstances. We hang around with people in the same town; our friends have about the same educational backgrounds and career goals. We tend to be most comfortable with these people, and therefore we tend to link up with others whose families are often much like our own.

小题1:Why do our mother’s characteristics leave us an indelible impression?

A.Because we are likely to be attached to people with her characteristics.

B.Because the mother and her child are the centers of each other when her child is very young.

C.Because our mother is better than our dad.

D.Because our mother is a woman who is kind to us.小题2:Which of the following is NOT true?

A.If our mother is warm and giving, we love to be together with warm and generous people.

B.If our mother is strong and well-controlled, we are going to be attracted to a fair-minded strength in

our mates.

C.Mother not only gives her children clues to what they will find attractive in a mate, but also affects

how they feel about women in general.

D.Fathers influence their daughter’s general feelings about men.小题3:What can we know from Paragraphs 2 and 3?

A.The mother only influences her sons.

B.The sons always think women are warm and nice.

C.A mother who has a depressive personality is sure to raise a dance-away lover.

D.The mother has an additional influence on her sons.小题4:What does the underlined word “lavishes” in Paragraph 5 probably mean?

A.Uses much.

B.Uses little.

C.Never uses.

D.Seldom uses.小题5:What does the passage mainly talk about?

A.Mothers’ influence on their sons.

B.Parents’ influence on their children.

C.Parents’ impression on their children.

D.Fathers’ influence on their daughters.

题型:单项选择题

影响原发性肝癌的预后有哪些因素?

题型:单项选择题

直径为10分米的半圆,周长是______分米.

题型:单项选择题

下图为某家族白化病(皮肤中无黑色素)的遗传系谱,请据图回答(相关的遗传基因用A、a表示)

Ⅰ3和Ⅰ4都是正常,但他们有一儿子为白化病患者,这种现象在遗传学上称为()

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