5÷（25+5）
=5÷30，
≈16.7%．
即糖约占糖水重量的16.7%．
故选：B．
已知集合A={1，2，3}，B={1，4}，那么集合A∪B等于（ ）
A．{1}
B．{4}
C．{2，3}
D．{1，2，3，4}
________ me what you wanted to know, I should not have wasted my time talking so much with you.
A．Had you told
B．You have told
C．You had told
D．Have you told
