机械通气期间 ,使用加热湿化器时,湿化器温度应调节在
A.34 - 35℃
B.36 - 37℃
C.32 - 35℃
D.40 - 41℃
- · 有4位网友选择 A,占比44.44%
- · 有2位网友选择 C,占比22.22%
- · 有2位网友选择 B,占比22.22%
- · 有1位网友选择 D,占比11.11%
A.34 - 35℃
B.36 - 37℃
C.32 - 35℃
D.40 - 41℃
A.the British government will be forced to increase its spending on higher education
B.British employers demand an expansion in enrollment at the expense of quality
C.the best way out for British universities is to follow their European counterparts
D.British students will probably have to pay for their higher education in the near future
B.C4和R11组成的电路实现延时功能,也就是功能体现上的延时一段时间了。
C.烘手器一般来说是手离开一段时间后整个吹风才关闭,电路中是由C3和R8组成的电路实现延时功能。
D.物体离开发射接收头前方,电路接收不到信号,一段延时后能听到“滴答”声,继电器不工作。
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