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【单选题】
草履虫是研究动物生物学的好材料,其体内大核的功能是A.
横二分裂
B.
营养与代谢
C.
纵二分裂
D.
接合生殖
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举一反三
【单选题】Why did the couple in the film have to live with the wife's mother?
A.
Because the mother was alone.
B.
Because the mother should be taken care of.
C.
Because the couple had not enough money to buy their own house.
D.
Because the couple want to live with the mother.
【单选题】Why does Chris's wife leave him?
A.
Because of the pressure of life.
B.
Because she doesn't love him.
【简答题】Why does B’s wife want to stay in a hotel near the damage of the tsunami?
【简答题】Why does B’s wife want to live in a hotel near the damage of the tsunami?
【单选题】全要素生产率（TFP）是指在各种生产要素的投入水平既定的条件下，所达到的额外增加的生产效率。它有三个一是效率的改善；二是技术进步；三是规模效应。以下属于提高全要素生产率的途径是（） ①推动产业结构优化升级和技术创新 ②促进“引进来”和“走出去”更好结合 ③加强科学管理，优化配置生产要素 ④不断增强国有经济的控制力、影响力
A.
①②
B.
②③
C.
①③
D.
③④
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