问题
单项选择题
叶酸的拮抗剂是()
A．次黄嘌呤
B．胸腺嘧啶核苷
C．胸腺嘧啶核苷激酶
D．氨基蝶呤
E．次黄嘌呤核糖转化酶
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
叶酸的拮抗剂是()
A．次黄嘌呤
B．胸腺嘧啶核苷
C．胸腺嘧啶核苷激酶
D．氨基蝶呤
E．次黄嘌呤核糖转化酶
参考答案：D
My tire was flat. And I was on a country road. When I with the tire, a car pulled off the road behind me. I saw a male and said, “Hey, do you need any help?” I literally was . This young guy was dressed in black. Nearly everything imaginable was tattooed(纹身). When he asked to give me a , I someone sitting in his car. That me. Thoughts of robberies flashed through my mind. Then, it began to . It hit like a waterfall and made it to finish the tire change. With the car jacked(千斤顶托起) up, I was to get in my car. “Get in my car” he insisted, “We’ll wait with you until the rain stops.” “No. I don’t need your help.” I said. “Come on. Get in.” he said as he my arm and pulled me toward his car. “Oh, God, protect me!” I to myself. As I settled into the back seat, suddenly a delicate came from the front seat of the car. “Are you all right?” “Yes, I am,” I replied with much seeing an old woman there. “My name is Beatrice and this is my neighbor John. John takes me to visit my husband in a nursing home every day. He is a really nice guy.” “John, I had thought you were, well, ah, you know I…” Embarrassment my words. John laughed, “I often experienced reaction. I actually thought about changing the way I look. then I saw it as an opportunity to see others.” He was right. What he wore outside was just a of the world as he saw it, but what he wore was the spirit of giving and caring the world he wanted to see. I never believed that I should people by the way they dressed. I was with myself for what I did. The rain stopped and John and I changed the tire. As we shook hands I apologized for my stupidity.
|