—She danced.
A:did;do
B:do;do
C:did;did
已知一次函数y=kx+b﹣x的图象与x轴的正半轴相交,且函数值y随自变量x的增大而增大,则k,b的取值情况为( )
从方框中选择最佳选项完成对话, 有两项多余。
A. Are these your parents?
B. Who is the boy on the left?
C. What’s your father’s job?
D. What’s this?
E. Is your mother a teacher?
F. Is this beautiful girl your sister?
G. What’s your father’s name?
Li Lei—L; Mary—M
L: Good morning, Mary.
M: Good morning, Li Lei.
L: ____
M: It's a photo of my family.
L: Oh. ____
M: Yes, she is. Her name is Lily.
M: Yes, they are.
M: He is a doctor.
M: No, she is a nurse.
如图,△ABC的三个顶点分别在边长为1的正方形网格的格点上,则tan(α+β)____ tanα+tanβ.(填“>”“=”“<”)