辨别证候的虚实真假，应注意病史、脉象、____和____四个方面。
参考答案：舌象；声音
He never thought of it before, ________all that his parents had done for him for granted.
A．taking
B．taken
C．to take
D．took
甲、乙两包糖的块数比是4：1，如果从甲包取出13块糖放入乙包，甲、乙两包糖的块数比为7：5，那么原来两包糖各有多少块？
