Because women often restrict their diet in an effort to control weight, they may not consume enough iron-rich food and ________ experience an iron deficiency.

The main social services of the iron and steel industry system are the provision of iron and steel products and the consumption of iron ore A: 正确 B: 错误

() and the poor are quite different in their opinions of the political candidates(候选人). A: Rich B: The rich C: Rich D: A rich

1803a8273f88c11.png 的英文名称是______。 A: iron (II) carbonate B: ferrous carbonate C: iron carbonate D: ferric carbonate E: iron (III) carbonate

e. Vitamin C supplements may be combined with iron supplements to increase iron absorption.

which statement is true about the South Korea? A: it is large by arable land and rich in natural gas resource B: Soule is its largest sea port C: it exports corn and rice in large volume D: its industrial raw materials such as oil and iron ore depend on imports

According to the passage, how did Bessemer method make the mass production of steel possible A: It directed air at melted iron in a furnace, removing all impurities. B: It slowly heated iron ore then stirred it and heated it again. C: It changed iron ore into iron which was a substitute for steel. D: It could quickly find deposits of iron ore under the ground.

The mass of a single iron atom is 9.3 × 10–23 g. Determine the number if iron atoms in regular cube that measures exactly 10 cm on an edge. The density of iron is 7.86 g/cm3  (   )

The author cleverly interweaved the theme of “not rich” with that of “rich” in the essay.

__________, I will take her as my wife. A: Were she rich or poor B: Be she poor or rich C: Being rich or poor D: Whether is she poor or rich