“早穿棉袄,午穿纱”反映的是[ ]
A、某地的气温日较差大
B、某地的气温月较差大
C、某地的气温年较差大
D、某地的气温年际变化大
答案:A
平板阀在关闭到位后,回旋1/4~1/2圈是为了保证阀的浮动密封。()
A、对
B、错
It is sleeping late in the morning that _____ being late for work.
A.devotes to
B.sticks to
C.refers to
D.leads to