行距框中的设置值只对最小值、固定值或（）有效。
A.最大值
B.两倍行距
C.多倍行距
D.1.5倍行距
参考答案：C
“Shall we stop for lunch _____ shall we drive on?”“Let’s stop for lunch, but the driver can’t drink _____ drive.”
A．and, and
B．or, or
C．and, or
D．or, and
