单项选择题

The main idea of the fourth paragraph is________.

A．Chinese meals are much healthier than Indian meals
B．saturated fat and cholesterol will cause heart disease
C．the oriental-style cooking provides adequate proteins for all
D．eating vegetables with some meat will be helpful for taking proteins

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热门试题

单项选择题

It can be concluded that the difference between complete proteins, partially complete proteins and incomplete proteins lies in________.

A．the amount of essential amino acids
B．the types of essential amino acids
C．the amount of lysine
D．the combinations of amino acids

单项选择题

According to the first paragraph, gelatin________.

A．is a protein that can be obtained from animals
B．is harmful to human bodies
C．should not be made into a dessert
D．is lacking in tryptophan and arginine