把一块直尺与一块三角板如图放置,若∠1=40°,则∠2的度数为( )
A:125°
B:120°
C:140°
D:130°
用适当的介词填空
What do you like doing ____the evening?
Thanks ____ your letter.
Look ________ the blackboard and listen____me.
We begin classes ____ about 8:00.
(2015•临沂)如图A,B,C是⊙O上的三个点,若∠AOC=100°,则∠ABC等于( )
选择适当的关联词。
我问小刚:“你_____参加美术小组,_____参加航模小组?”( )