一个三位数乘0,积是[ ] A.0 B.三位数 C.四位数

题型:选择题

问题:

一个三位数乘0,积是[ ]

A.0

B.三位数

C.四位数

考点:有关01的计算
题型:选择题

酮体合成的原料乙酰CoA主要来源是()

A.氨基酸代谢

B.糖的磷酸戊糖途径

C.甘油氧化

D.脂肪酸β-氧化

E.糖原合成

题型:选择题

心肺复苏中,哪项不是补充碳酸氢钠的目的()

A.防止细胞内出现酸中毒

B.改善心肌功能

C.纠正酸中毒环境

D.改善中枢神经功能

E.提高肾上腺素能受体功能

题型:选择题

I will never forget the year I was about twelve years old. My mother told us that we would not be (16) Christmas gifts because there was not enough money. I felt sad and thought, "What would I say when the other kids asked what I’ d (17) " Just when I started to (18) that there would not be a Christmas that year, three women (19) at our house with gifts for all of us. For me they brought a doll. I felt such a sense of (20) that I would no longer have to be embarrassed when I returned to school. I wasn’t (21) . Somebody had thought (22) of me to bring me a gift.

Years later, when I stood in the kitchen of my new house, thinking how I wanted to make my (23) Christmas there special and memorable, I (24) remembered the women’s visit. I decided that I wanted to create that same feeling of (25) for as many children as I could possibly reach.

So I (26) a plan and gathered forty people from my company to help. We gathered about 125 orphans (孤儿) at the Christmas party. For every child, we wrapped colorful packages filled with

toys, clothes, and school supplies, (27) with a child’ s name. We wanted all of them to know they were (28) Before I called out their names and handed them their gifts, I (29) them that they couldn’t open their presents (30) every child had come forward. Finally the (31) they had been waiting for came as I called out, "One, two, three. Open your presents!" As the children opened their packages, their faces beamed and their bright smiles (32) up the room. The (33) in the room was obvious, and (34) wasn’ t just about toys. It was a feeling, and the feeling I knew (35) that Christmas so long ago when the women came to visit. I wasn’t forgotten. Somebody thought of me. I matter.

35()

A.by 

B.till 

C.for 

D.from

题型:选择题

巨噬细胞活化后,可以经由淋巴系统迁移至最近的()

A.淋巴结

B.组织

C.器官

D.脾脏

题型:选择题

Horizon基站的DDF相当于M_CELL的()

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