【简答题】确定下列分子或物体所属的点群: (1)SiHDBr2 (四面体) (2)SiFClBrI (四面体) (3)SiH2Br2 (四面体) (4)PCl3 (三角锥体) (5)OPCl3 (三角锥体) (6)CO2 (直线形) (7)P4O6 (四面体) (8)Mn(CO)5I (八面体) (9)字母T和Z (10)一支粉笔
【多选题】Which of the following is the type of the computer network?
A.
Remote area network (RAN)
B.
Metropolitan area network (MAN)
C.
Local area network (LAN)
D.
Personal area network (PAN)
【单选题】根据WADE规则,Co6(CO)16的结构应属于
【单选题】敏捷软件开发方法的核心思想为( )
D.
强调人和人之间的合作的因素和以敏捷性应对变化
【多选题】下列选项中,不属于宋代理学家朱熹编定的“四书”的著作是
【单选题】The witch______ magic on the Snow White so that she______ for a month.
A.
had used... will sleep
C.
had used... would sleep
【单选题】---What do you want to _________ your new dog, Lucy? ---Snow White. It’s the best name for her because she is beautiful and white.
【单选题】The computer network was originally building for the purpose of .
【单选题】下面单形都有8个晶面,属等腰三角形晶面的是()