【单选题】下列药物中,可在光的作用下发生歧化反应的药物是()
【判断题】糖浆剂在贮存中产生沉淀的原因可能是蔗糖加入过多。
【单选题】配置混凝土时,所用砂、石应尽量使( )。
【简答题】目前我国在建的林木良种生产基地主要有母树林、 、 。
【单选题】( )代表了人类社会迄今最先进的人生追求。
【单选题】Which one is NOT the ‘clear grounds’ for a more detailed inspection?
A.
the master and the chief engineer are unable to communicate effectively
B.
serious corrosion on the hull
D.
one page missing in the oil record book
【单选题】Which one is NOT the ‘clear grounds’ for a more detailed inspection?
A.
absence of engine log book
B.
serious corrosion on the hull
C.
one page missing in the oil record book
D.
paint peeling off some tailings in engine rooms
【单选题】( )代表了人类社会迄今最先进的人生追求。