液压系统中,液压油的温度必须处于()度。
参考答案:25-55
At first I regretted _____ them to stay, but we soon became great friends.
A.to invite
B.invited
C.to have invited
D.inviting
—What do you think of the speech? —The speaker said ___ nothing worth ___
A.nearly; listening to
B.hardly; listening
C.scarcely; listening
D.almost; listening to