中毒性菌痢发病的主要原因()
A.机体免疫功能低下
B.是机体对痢疾杆菌毒素的反应性较高所致
C.感染了毒力强的志贺痢疾杆菌
D.肠道病变过于严重
E.以上都不是
参考答案:B
As there is less and less coal and oil, scientists are exploring new ways of making use of ______________ energy, such as sunlight, wind and water for power and fuel.
A.abrupt
B.alternative
C.authentic
D.abstract
厚朴具有的功效是( )
A.燥湿健脾,祛风散寒B.化湿,解暑,止呕C.燥湿消痰,下气除满D.化湿行气,温中止泻,安胎E.化湿行气,止呕