单项选择题
The Declaration of Independence include the following contents except A、natural rights to life, liberty and the pursuit of happiness B、government under social contract C、accusation of power abuse of the British King D、institution of a new government system
单项选择题 下列化合物按SN1历程反应的活性由大到小为（ ）
单项选择题 The boy's father bought him a large toy ______. A、to play B、to play with C、playing D、being played
多项选择题 MIB消息主要包括以下（ ）。 A、系统帧号 B、CRC C、PHICH配置 D、小区重选信息
