图中是两条大河的河口图,图中的小岛因泥沙不断堆积而扩展,最终将与河的哪岸相连:
①甲岸 ②乙岸 ③丙岸 ④丁岸
A、①③
B、②③
C、①④
D、②④
答案:C
—Do you know ______ the girl in red is?
—I'm not sure, but she looks like a teacher. [ ]
A. how old
B. what
C. who
D. where
按《南极条约》规定,南极地区是指()。