All the athletes _______ the nice service during the London Olympics.
A:were pleased
B:were pleased with
C:were pleasure
D:were pleasure with
一台组装电脑的成本价是4000元,如果商家以5200元的价格卖给顾客,那么商家的盈利率为____
选择带下划线字词的正确意义。
行人临发又开封。_____