臂内倒位的倒位环内,非姊妹染色单体之间发生一次交换,其结果是减数分裂的后期分离出四种

题型:填空题

问题:

臂内倒位的倒位环内,非姊妹染色单体之间发生一次交换,其结果是减数分裂的后期分离出四种形式的染色体即双着丝粒染色体,无着丝粒染色体,正常染色体,()染色体。

考点:生物学动物遗传学动物遗传学题库
题型:填空题

为中毒病人催吐时应注意()

A.对昏迷状态病人应禁止催吐

B.中毒引起抽搐、惊厥未被控制之前不宜催吐

C.患有食道静脉曲张、主动脉瘤、胃溃疡出血等病人不宜催吐

D.孕妇慎用

E.呕吐时须防止呕吐物吸入气管发生窒息或引起肺炎

题型:填空题

女,近半年月经不规则,现停经60天, * * 出血12d,量时多时少。妇科检查:宫颈光滑,子宫稍大,质中等硬,双侧附件无异常,为明确诊断最恰当的检查方法是()

A.尿妊娠试验

B.基础体温测定

C.宫颈刮片细胞学检查

D.子宫内膜病理检查

E.子宫输卵管碘油造影

题型:填空题

阅读理解。

     On a hill 600 feet above the surrounding land, we watch the lines of rain move across the scene, the

moon rise over the hills, and the stars appear in the sky. The views invite a long look from a comfortable

chair in front of the wooden house.

    Every window in our wooden house has a view, and the forest and lakes seldom look the same as the

hour before. Each look reminds us where we are.

    There is space for our three boys to play outside, to shoot arrows, collect tree seeds, build earth

houses and climb trees.

    Our kids have learned the names of the trees, and with the names have come familiarity and

appreciation. As they tell all who show even a passing interest, maple(枫树)makes the best fighting sticks

and white pines are the best climbing trees.

    The air is clean and fresh. The water from the well has a pleasant taste, and it is perhaps the healthiest

water our kids will ever drink. Though they have one glass a day of juice and the rest is water, they never

say anything against that.

    The seasons change just outside the door. We watch the maples turn every shade of yellow and red in

the fall and note the poplars'(杨树)putting out the first green leaves of spring. The rainbow smelt fills the

local steam as the ice gradually disappears, and the wood frogs start to sing in pools after being frozen for

the winter. A family of birds rules our skies and flies over the lake.

1. What can be learned from Paragraph 2?

A. The scenes are colorful and changeable.

B. There are many windows in the wooden house.

C. The views remind us that we are in a wooden house.

D. The lakes outside the windows are quite different in color.

2. By mentioning the names of the trees, the author aims to show that ______ .

A. the kids like playing in trees

B. the kids are very familiar with trees

C. the kids have learned much knowledge

D. the kids find trees useful learning tools

3. What does the underlined sentence in the last paragraph mean?

A. The change of seasons is easily felt.

B. The seasons make the scenes change.

C. The weather often changes in the forest.

D. The door is a good position to enjoy changing seasons.

4. What is the main purpose of the author writing the text?

A. To describe the beauty of the scene around the house.

B. To introduce her children's happy life in the forest.

C. To show that living in the forest is healthful.

D. To share the joy of living in the nature.

题型:填空题

脱离战略性的培训计划,虽然在企业现阶段工作中能起到一定的作用,但必将因与企业整体发展规划脱节而落后被动,顾此失彼。( )

题型:填空题

团体会议(讨论)的职能有哪些?

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