The computers on the table()Professor Smith.
A.belongs
B.are belonged to
C.belongs to
D.belong to
If I were you, I would()for the job in person rather than mail.
A. apply
B. reply
C. wait
D. search
My grandpa died().
A.at the age of my 2
B.for 2 years
C.when I was 2
D.my age was 6
对于初次开机或停机时间较长的采煤机应在只开电动机冷却水情况下打开离合器空转10—15分钟,使油温升至____℃。
A. 30
B. 40
C. 50
D. 60