问题
单项选择题 A1/A2型题
完全机械通气支持治疗时，通气机的频率应维持在（）
A.10／min以上
B.8／min以上
C.5／min以上
D.20／min以上
E.6／min以上
答案
参考答案：B
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完全机械通气支持治疗时，通气机的频率应维持在（）
A.10／min以上
B.8／min以上
C.5／min以上
D.20／min以上
E.6／min以上
参考答案：B
| It is all very well to blame traffic jams, the cost of petrol and the quick pace of modern life, but manners on the roads are becoming horrible. You might tolerate the rude and (21) driver, but nowadays the well-mannered motorist is the (22) to the rule. Perhaps the situation (23) a "Be Kind to Other Drivers" campaign, (24) , it may get completely out of hand. Road politeness is not only good manners, but good (25) too. It takes the most cool-headed and good-tempered drivers to resist the temptation to revenge when (26) uncivilized behaviors. On the other hand, a little politeness goes a long way towards (27) the tensions of motoring. A friendly nod or a wave of acknowledgement (28) an act of politeness helps to create an atmosphere of goodwill and tolerance so (29) in modern traffic conditions. But such acknowledgements of politeness are (30) rare today. Many drivers nowadays aren’t even able to recognize politeness when they see it. However, improper politeness can also be (31) A typical example is the driver who waves a child across a crossing into the path of oncoming vehicles (32) may be unable to stop in time. The same (33) encouraging old ladies to cross the road wherever and (34) they care to. Years ago the experts warned us that the car-ownership explosion would demand a lot more give-and-take from all road users. It is high time that we (35) this message to heart. |
A．calls in
B．calls up
C．calls on
D．calls for