离心泵按叶轮吸液方式的不同划分包括()。
A、单吸泵
B、单级泵
C、多吸泵
D、双级泵
参考答案:A, C
Surprisingly, Susan's beautiful hair reached below her knees and made ________ almost an overcoat
for her. [ ]
A. them
B. her
C. itself
D. herself
在为某新生儿患者实施复苏时,判断患儿无自主呼吸,将新生儿置于远红外线复苏台上保暖,头轻度(),头部处于()。