【单选题】从1700年到1980年,下列地区中森林覆盖率明显上升的是()。
【单选题】A man may usually be known by the books he reads as well as by the company he keeps, for there is a companionship of books as well as of men.
A.
人往往可以从一个人所交往的朋友以及所阅读的书去看他的为人。 这是因为人与人之间、人与书之间同样有友谊。
B.
人往往可以从一个人所交往的朋友以及所阅读的书去看他的为 人。这是因为人与人之间有友谊,同样的,人与书之间也有友 谊。
C.
要想了解一个人,得先观其友,再看其读何书,因为人既能与 人为友,还能与书为友。
【单选题】在公钥基础设施环境中,通信的各方首先需要()。
【单选题】.A man may usually be known by the books he reads _______ by the friends he keeps.
【单选题】A man may usually be known by the books he reads ____ by the friends he keeps. [ ]
【单选题】A man may usually be known by the books he reads by the friends he made with.
【判断题】A man may usually be known by the books he reads as well as by the friends he makes with.
【判断题】账簿的设置与登记的基本内容包括:封面、扉页和账页。
【判断题】在公钥基础设施环境中,通信的各方首先需要申请一个数字证书