题干
—Is your husband at home?
— I am not sure. __________ he is in the office.
A：May
B：May be
C：Maybe
D：Might
答案(点此获取答案解析）
C
—Is your husband at home?
— I am not sure. __________ he is in the office.
A：May
B：May be
C：Maybe
D：Might
的固定斜面上。滑块与斜面之间的动摩擦因数为
。若滑块与斜面之间的最大静摩擦力合滑动摩擦力大小相等，重力加速度为g，则 （ ）