【单选题】在人伦道德领域孟子提出了著名 “五伦”说,以下不属于“五伦”说的是。
【单选题】If the land area of the earth is about 55,000,000 square miles, the area that can be explored in space is probably______.
A.
55,000,000 square miles
B.
70,000,000 square miles
C.
13,720,000 square miles
D.
550,000,000 square miles
【单选题】The earth is about __ as the moon.
【单选题】The earth is about ( ) as the moon.
【单选题】The earth is about ___as the moon.
【单选题】对数据库的修改必须遵循的规则是:要么全部完成,要么全不修改。这点可以认为是事务的()特性。