很多系统在登录时都要求用户输入以图片形式显示的一个字符串,其作用是()A.阻止没有键 发布时间:2018-01-07 06:36 │ 来源:www.tikuol.com 题型:单项选择题 问题: 很多系统在登录时都要求用户输入以图片形式显示的一个字符串,其作用是()A.阻止没有键盘的用户登录B.欺骗非法用户C.防止用户利用程序自动登录D.限制登录次数
题型:单项选择题 下列关于抗原抗体反应的特点表述,正确的是()A.抗原抗体反应有交叉反应,故抗原抗体反应的特异性不强B.抗原抗体反应必须在抗体量略大于抗原量时,形成的复合物最大C.抗原抗体复合物解离为游离的抗原与抗体后其生物学活性将发生改变D.抗原抗体反应形成的复合物又可解离为游离的抗原与抗体E.抗原抗体反应分为两个阶段,两个阶段之间有明显的界限 查看答案
题型:单项选择题 正常育龄女性子宫大小是()。A.长径6.0cm,横径4.0cm,前后径2.0cmB.长径7.0cm,横径5.0cm,前后径3.0cmC.长径8.0cm,横径6.0cm,前后径4.0cmD.长径9.0cm,横径7.0cm,前后径5.0cm 查看答案
题型:单项选择题 下列关于发育呈连续性又有阶段性的论述哪一个是错误的()A.该过程既有量变又有质变B.各发育阶段顺序衔接,发育快的可以跳跃C.前一阶段为后一阶段打基础D.前一阶段发育受到障碍,可对后一阶段产生不良影响E.各发育阶段有各自的特点 查看答案
题型:单项选择题 XP is (71) of interesting twists that encourage one to think--for example, how about "Test and then code" I’ve worked with software companies and a few IT organizations in (72) programmer performance was measured on lines of code delivered and testing was measured on defects found-- (73) side was motivated to reduce the number of defects prior to testing. XP uses two types of testing: unit and functional. (74) , the practice for unit testing involves developing the test for the feature prior to writing the code and further states that the tests should be automated. Once the code is written, it is immediately (75) to the test suite bringing instant feedback.(72)处填()。A. themB. whereC. thatD. which 查看答案