下列地球能源属于地质时期储存的太阳能的是
①煤炭②地热③石油④水能[ ]
A.①②
B.①③
C.③④
D.②④
答案:B
Usually we get ________ about something and end up _________ in Chinese.
A.exciting; speaking
B.exciting; speak
C.excited; speaking
D.excited; speak
与Winsows系统不一样的是UNIS/Linux操作系统中不存在预置帐号。()