皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
在进行检验时,通常先进行______,一方面可以检验在计算上有无错误;另外一方面也可以提供其他检验所需要的基本数据。
A.
方差分析
B.
相关检验
C.
t检验
D.
F检验
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】question 5: Which of the following best summarizes the main idea of the passage?
A.
The Internet is posing a threat to publishers.
B.
A new mode of publication is emerging.
C.
Authors welcome the new channel for publication.
D.
Publication is rendered easier by online service.
【单选题】光合生产潜力是指在植物群体结构及其各种环境因素处于最佳状态时,由()能资源所决定的产量潜力。
A.
B.
C.
D.
【多选题】下列属于决定植物产量的因素有()。
A.
光合强度
B.
光合时间
C.
经济系数
D.
呼吸消耗
【单选题】在神经细胞动作电位的去极化阶段,通透性最大的离子是( )
A.
K +
B.
Na +
C.
Cl -
D.
Ca 2+
【单选题】许多生物体的隐性等位基因很不稳定,以较高的频率逆转为野生型。玉米的一个基因C,决定果实中产生红色色素;等位基因cm1或cm2不会产生红色素。cm1在玉米果实发育中较晚发生逆转,但频率高;cm2较早发生逆转,而逆转频率低。据此,基因型为cm1cm2的植株自花授粉所得玉米果实可能具有的特征是:()
A.
一半的果实具有小而少的红斑
B.
一半的果实具有大而多的红斑
C.
一半的果实既有小红斑,又有大红斑,小红斑数量更多
D.
一半的果实无色,因为没有C基因,cm1或cm2不会产生红色素
【单选题】Which of the following is NOT the question to be asked about audience-centeredness?
A.
What will my audience think of me as a speaker?
B.
What do I want them to know, believe, or do as a result of my speech?
C.
What is the most effective way of composing and presenting my speech to accomplish my aim?
D.
To whom am I speaking?
【简答题】植物的生物产量取决于光合面积、光合强度、光合时间、光合产物的消耗, 因此 决定植物产量的因素是叶面积、 、 、 和经济系数。
【单选题】Refer to the figure accompanying Question 5. At Point 4, the trader is said to be which of the following?
A.
Conservative in time of entry and aggressive in price on entry.
B.
Aggressive in time of entry and conservative in price on entry.
C.
Aggressive in time of entry and aggressive in price on entry.
D.
Conservative in time of entry and conservative in price on entry.
【单选题】Choose the best answer for each question.Which of the following statements is true?【图片】
A.
The woman is very happy with the pay raise
B.
The woman will work harder than before
C.
The woman gets 30 percent pay raise
D.
The woman gets 5 percent pay raise
【简答题】林木所含化学元素多达几十种,但并不都是必需的,对树木生长起决定作用的是土壤中相对含量最少的养分因子,即__________.植物产量的高低受土壤中相对含量______的养分所制约.
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题