鸟类的枕骨大孔在背面。（）
参考答案：错
解析：将“背面”改为“腹面”
A teacher's________to education deserves great respect of the whole public because it brings benefits
to the development of society. [ ]
A. devotion
B. identity
C. distribution
D. guidance
I didn't understand the whole (整个的) thing _______ she told me the secret(秘密).[ ]
A. until
B. when
C. after
D. because
