下表是同学甲在复习中国古代科技成就时,制作出的简表(部分),其中错误的是
A.①②
B.②③
C.①④
D.③④
答案:B
— Look! The black clouds are gathering, which indicates that it __________ rain soon.
— Yes, black clouds are the _________ of the rain. [ ]
A. is going to; signal
B. will; mark
C. is gong to; sign
D. is to; sign
秦始皇时期,下列哪些人属于移民?()
A.商鞅
B.赵高
C.李斯
D.蒙恬