题目: 数字签名是笔迹签名的模拟,用于确认发送者身份,是一个______的消息摘要。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0326/124fd9d2fd9fc867625620bf6e2a08e9.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:填空题 用方框中所给词或短语的适当形式填空。(方框中有两个是多余的)Five times Saturday beach keep and hardly everAlthough them for unhealthy or eating habit How often do you eat chocolate and chips? 1 a week? That's a bad 2 ! Every day we eat a lot of food. Some are good 3 0ur health, and some are bad for our health. What's good food? Here is a food pyramid (金字塔). Every day, we should eat much bread and rice; we should eat some vegetables _4 fruit, maybe two apples or three oranges. A lot of bread, rice, vegetables and fruit help you _5 in good health. We should have one glass or two glasses of milk and less fish, meat, chicken 6 eggs. Of course, we should 7 eat junk food. 8 sweets and cola are very delicious, we can't often eat 9 . They're 10 food.1. _________2. _________3. _________4. _________ 5. _________6. _________7. _________8. _________9. _________10. _________ 查看答案
题型:单项选择题 A3/A4型题 某三甲医院2005年6月共收治住院病人2500人,其中有200人新发医院感染,新感染例次数为250次,同期有375人存在医院感染。新发医院感染中,50人发生术后切口感染。同期住院病人中共有800人接受了外科手术。这所医院在2005年6月的医院感染患病率约为()A.5%B.8%C.10%D.15%E.20% 查看答案