题目

Meimei is going to be an older sister．Her parents are  planning to have their ________ child．（ ）    A．one         B．two          C．first         D.second 答案：D下列有机物中氧化产物不能发生银镜反应的是（    ） A.CH3OH                                      B.C.CH3CH2CH2OH                         D.