问题
单项选择题
In the preceding figure, if l1∥l2, what is the value of x ?()
A.36
B.54
C.90
D.144
E.154
答案
参考答案:D
In the preceding figure, if l1∥l2, what is the value of x ?()
A.36
B.54
C.90
D.144
E.154
参考答案:D