Lucy _________ cook food for the picnic.[ ]
A. have
B. have to
C. has
D. has to
答案:D
北京城坐落于哪一条水系冲洪积扇的脊部( )。P2
A.永定河
B.潮白河
C.温愉河
D.拒马河
邓 * * 新时期军队建设思想的主要