—The South. She prefers rice to noodles.
A:how old she is
B:what she does
C:where she's from
D:who she is
____
中南半岛的地形特征是( )
如图,在四边形ABCD中,AC、BD相交于点O,E、F是AD、BC的中点,EF分别交AC、BD于M、N,且OM=ON.
求证:AC=BD.
甲溶液的pH=6,乙溶液的pH=2,则下列叙述正确的是