题目

Now I can see that it is normal that people feel a little embarrassed to accept unexpected help from a stranger. Yesterday after 1 tried to pay for the person behind me at Starbucks, I was rejected. 21. I decided to take a different   22   to it today. 1 did something that absolutely could not be rejected, and probably won't even be __23_ for another few hours. About once a week, 1 go and get a   24   at Starbucks (otherwise, I made it on my own to save money), I usually   25   with a credit card, or my Starbucks card, which means that I, like many others, don't get any  3．精子和卵细胞产生后的繁殖过程的正确顺序是（　　）①受精    ②胚泡埋入子宫内膜    ③受精卵    ④排卵．A．①②③④B．④③②①C．④①③②D．④②①③