【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. [ ]
【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