心脏病人的麻醉原则，哪项最正确（）。
A．平稳诱导
B．多项监测
C．心血管稳定
D．通气满意
E．以上均是
参考答案：E
The engineers are going on with their highway project, _____the expenses have risen.
A．even though
B．just because
C．now that
D．as though
什么是粘泥？什么是微生物粘泥？
