除另有说明以外,每艘救生艇的正常属具应包括()具有发光剂或适当照明装置的操舵罗经.
A.1只
B.2只
C.3只
参考答案:C
实数x满足log3x=1+sinθ,则|x-1|+|x-9|的值为
A.8
B.-8
C.8或-8
D.与θ有关
Last week I met my old friend Li Ming, but I forgot __________ him for his telephone number.[ ]
A. ask
B. asking
C. and ask
D. to ask