目前认为心肌保护效果更好、也方便手术的心肌保护方法是()
A.低温晶体液
B.低温氧合血
C.心肌预缺血低温晶体液
D.不阻断主动脉
E.常温氧合血
参考答案:B
There was __________rain last night and it’s _________cold now.
A.too many; much too
B. much too; too many
C.too much; much too
D.much too; too much
对渠道陡坡高速水流消能,尾栅式消力池是由放置在池中的一定位置的弧形消力墩、池尾的栅式尾坎和池后的二级消力墩组成。设置()可基本解决渠道初始放水过程中消力池的水流垂直跃起的问题,
A、池末尾栅
B、弧形消力墩
C、二级消力墩
D、栅式尾坎