当溴冷机冷水出口温度降至7℃以下时或更低时,可能倒使()。
A.制冷量提高
B.冷凝压力降低
C.冷水冻结
D.设备更安全
参考答案:C
Let's play __________ basketball. I don't like playing __________ violin at home.[ ]
A. the, the
B. the, /
C. /, the
下列哪项无盆腔腹膜覆盖( )
A.圆韧带B.卵巢C.宫骶韧带D.子宫底部E.子宫直肠陷凹