A:feature
B:horizo
C:heritage
D:reservatio
20÷4=____
60÷3=____
100÷10=____
21÷7=____
读某区域2月大洋表面海水等温线分布图,完成下列各题。
下列动物的行为中,属于先天性行为的是( )
—Will you please tell us how you can seize the robbers?
—I will spend a whole week ________in your room to wait for their coming.