物料提升机吊笼的越程应不小于()
A.1.5m
B.2m
C.2.5m
D.3m
参考答案:D
“立大学以教国,设庠序以化于邑”中的“庠序”是指什么?()
A.公园
B.医院
C.学校
D.监狱
I'd appreciate________ if you would like to teach me how to use the computer.[ ]
A. that
B. it
C. this
D. this