【多选题】组织结构设计后的实施要则包括 ( ) 。
【单选题】The UN today has the same basic purpose and structure as it did when it was founded in 1945. Its primary purpose—and greatest benefit to its members—is to maintain world peace. That, in turn, helps en...
A.
To maintain local peace.
B.
To maintain world peace.
C.
To encourage business.
D.
To encourage international trade.
【判断题】如果通过某一截面的磁通为零,则该截面处的磁感应强度一定为零。
【单选题】新中国第一部社会主义类型的宪法是 ( )