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【判断题】
肺性脑病不宜吸入高浓度氧的重要原因是解除颈动脉化学感受器的兴奋性。A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】One day Jack's wife was cleaning the house. 'Look at all these umbrellas (雨伞) ,' Jack's wife said to him. 'There are eight and they are broken.' 'I'll take them all to the umbrella shop. Maybe the wor...
A.
She was doing some washing.
B.
She was doing some cleaning.
C.
She was doing some shopping.
【单选题】Look! Emma is_______ her bedroom. Her room is always_________.
A.
clean, clean
B.
clean, cleaning
C.
cleaning, clean
D.
cleaning, cleaning
【单选题】Peter said,“jack,clean the room at once.” Peter ______the room at once.
A.
Asked jack to clean
B.
Asks jack to clean
C.
Asked jack clean
D.
Asks jack clean
【单选题】Look! The students ______ the classroom. [ ]
A.
clean
B.
are cleaning
C.
are clean
D.
cleaning
【单选题】Tom was playing football on the road. A car was coming, Jack called to Tom, 'Look out!'. Here 'look out' means ______. [ ]
A.
向外看
B.
当心
C.
向前看
D.
抬头看
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