A.与便秘型IBS相比,腹泻型IBS患者肠道中乳酸杆菌显著下降
B.与健康人群相比,便秘型IBS患者肠道中韦永氏球菌明显减多
C.腹泻型IBS肠道中肠杆菌科的含量较高
D.腹泻型IBS肠道中费卡氏菌的含量较低
E.以上均错误
A.静态局部变量在函数内定义
B.静态局部变量的生存期为整个源程序
C.静态局部变量的作用域为整个源程序
D.静态局部变量若在说明时未赋初值,则系统自动赋予0值
(1)提供一个简短但清楚的支持IBM应该试图"使顾客更多购买而较少租赁"的声明的论证。
(2)提出一个简短但清楚的反对该声明的论证。
(3)什么因素决定究竟是租赁还是销售对像IBM这样的公司更有利?简短解释。
Some year ago, an article appeared in The New York Times about IBM' s pricing policy. The previous day IBM had announced major price cuts on most of its small and medium-sized computers.The article said :
"IBM probably has no choice but to cut prices periodically to get its customers to purchase more and lease less. If they succeed, this could make life more difficult for IBM' s major competitors. Outright purchases of computers are needed for ever larger IBM revenues and profits, says Morgan Stanley's Ulric Weil in his new book , Information Systems in the 1980s. Mr. Weil declares that IBM cannot revert to an emphasis on leasing. "
a Provide a brief but clear argument in support of the claim that IBM should lry“lo get is customers to purchase more and lease less”
b. Provide a brief but clear argument against this claim.
e. What factors determine whether leasing or selling is preferable for a company like IBM? Explain briefly.
A.在wxml代码中,一个view组件可以同时使用两个在wxss中定义的样式
B.style又称为行内样式,可直接将样式代码写到组件的首标签中
C.小程序使用class属性指定样式规则,其属性值是由一个或多个自定义样式类名组成,多个样式类名之间用空格分隔
D.尽量将静态写入到style当中去,这样可以加快渲染速度