_______ that the scientist will give us a talk next month?
A:Is true
B:Is it true
C:It’s true
D:It’s truly
下列说法中错误的有( )
⑴线段有两个端点,直线有一个端点;
⑵角的大小与我们画出的角的两边的长短无关;
⑶线段上有无数个点;
⑷同角或等角的补角相等;
⑸两个锐角的和一定大于直角
—Excuse me, how long can I keep the book?
—You can return it by the end of this month.