问题
填空题
电子商务应用系统通常包含CA安全认证系统、______、业务应用系统和用户及终端系统。
答案
参考答案：支付网关系统
解析： 电子商务应用系统通常包含以下4个子系统：CA安全认证系统、支付网关系统、业务应用系统和用户及终端系统。
搜题请搜索小程序“爱下问搜题”
电子商务应用系统通常包含CA安全认证系统、______、业务应用系统和用户及终端系统。
参考答案：支付网关系统
解析： 电子商务应用系统通常包含以下4个子系统：CA安全认证系统、支付网关系统、业务应用系统和用户及终端系统。
Passage Four
When is a driver likely to have a sleep-related accident according to researchers
A．In the middle of the morning is 10 times as likely as those driving in the evening.
B．Very early in the evening is as likely as those driving early in the morning.
C．Very early in the morning is much more likely than those driving early in the evening.
D．In the middle of the evening is 10 times as likely as .those driving early in the morning.