在解方程3x﹣5=﹣x+1中，下面移项正确的是[ ]
A．3x+x=5+1
B．3x﹣x=﹣5﹣1
C．1﹣5=﹣3x+x
D．3x+x=5﹣1
A．
If you don't know how to pronounce new words, ________in a dictionary. [ ]
A. look them up
B. look they up
C. look up them
D. look up they
炉区热媒循环泵机封循环系统加注（）。
A、润滑脂
B、润滑油
C、三甘醇
D、导热油
